Plant was doing great, now today the leaves seem odd

My plant has been doing excellent till today, went to check on her and she seemed really sad and drooping down, also I wanted to ask if I should take off the lower branches of the plant that are not going to produce much of anything just at the tips and they are tiny bud sites... any help on what I should do would be helpful also she is on week 3 flowering.

Hi
Soil or hydro?
Have y checking ph and ec levels
Your leafs signe of ph problems
Look lock out
Have you done flush how’s your feeding

Soil grow, I haven't checked ph of soil but I make sure to ph test when I water been putting water that tests at least 6.8, what is ec levels? And I have not flushed, been feeding nutes every other watering. Do you think it's to Bush below, should I trim some? I included a better picture of what a few of the leave are doing

Looks like an over water stem looks good color looks good just droopy as shit and curling hmmm how often are you feeding and how much watering in general I know in flower she some times needs more water but it' best not to over do her also what' the light situation ? Type how far isbthe light? How long is the cycle is it an auto or are you on 12 And 12 ? More info

Droop is usually caused by either too much or too little moisture at the root zone. It looks like maybe it is hot in there all tight in a tube with no ventilation. The leaves are rolled up like tacos indicating there is too much heat. What are those led light strips? Not sure they are helping much. If it's too hot in there then the soil is drying out quickly forcing you to overwater. Another root cause could simply be too small a container which would cause very similar issues.
Trimming the bottom branches won't help the droop much either but if you want to lollipop by all means do it. Could even increase airflow a bit which I think is a lot of your issue here. Ventilation would be more beneficial to the plant than the reflective qualities of whatever that foil tube thing is.
Checking the ph runoff will tell you nothing useful; only a soil probe and a good one at that can tell you the actual ph in the root zone. A ph lockout would look like a deficiency. Looks like maybe you spilled some nutrients in the leaves no big deal but I doubt this plant is locked out of nutrients. Ph and ec btw are sort of the same thing; just a way of determining that the plant can absorb what it needs from the soil and/or the nutrients given. Adjusting the ph of your water does not affect the actual soil ph either; ph is set by what is in the soil mix itself.

I have a intake and exhaust fan temps stays around 70 to 80 I believe, idk what the led are exactly, got them at home depot, said for cannabis right on the package lol, I water it on average every day or over other day but I do notice the soil seems to dry out fairly quickly I only put about one liter of water when i do water it witch I thought was a bit much but maybe it's not enough now that it's in flower and needs more? I have it in a 5 gallon pot, no water ever comes out the bottom of pot when I water, would spraying the plant with a mist of water help if too hot? I appreciate your input!

Misting will do very little to help if the problem is a lack of moisture in the root zone. Stick a finger down deep into the soil, if its dry you know you need water. If it's very wet then let it dry out a bit before watering again. 5 gal seems large enough for this plant but if you find yourself needing to water every day that is a sign you might need to pot up.
Not saying those lights won't grow weed but having them all in a foil tube wrapped around tight like that is preventing airflow. Those LEDs might be ok as side lighting but I think you are better off upgrading your main lighting so you don't need all that reflective stuff stifling airflow to your plant. It looks to me like your plant is suffocating from either from too much or too little moisture in the soil and a lack of airflow overall. Could be related to temps too but if it's in the range you say then try to get more air flowing in there somehow. Ditch the tube thingy.

What Richard said lol

Surprisingly it has great airflow, the plant shakes all the way up, I have 2 CFL on on the top for main light, but my soil was really dry all around I will probably need to water it more then one liter and get some runoff when I water to make sure it penetrates the soil