Is this signs of over watering/root rot?

I have a plant who just started her 4 week of flowering.Everything was going fine until 2 days ago.I noticed that her leaves have began to droop and curl a bit.At first i thought that she was thirsty so i gave her a really good watering(plain water,no nutes).She then began to lean a little.i thought it was because her buds are starting to form and she may be getting a little top heavy.She isn't looking to hot today though.I then thought it may be heat stress,but the temp has been the same since day 1.I now think that i over watered her.if it is an over watering issue,if i let her dry out a bit over the next few days should she be alright.
I will include some pics to help you help me.
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Pull the plant and check the roots.

Yes - check them out. Looks a lot like overwatering.

- and yes if it's very wet let it dry out before watering again. The plant needs to be pretty dry between each watering. Lift the pot and feel how heavy it is - after some time you will know exactly how heavy it should be when you water again. Best time to water is just before leaves start wilting - BEFORE.

How often are you watering and for how long? For example, are you watering 3x a day for 10 minutes? 6x/day @ 5/min? etc.

I wish i could look at the roots themselves but if i take her out of her closest i will most likely fuck her up more than she already is.Plus she's in soil not hydro.There is a well at the bottom of the pot she is in that collects the run off from watering and when that is empty,i usually fill it up.she seems to be going through roughly 2 litres every 2-3 days.I have another post on here called thundernuts big bang in the grow journal section that has a better picture of the pot,and her mother.A few days ago i gave her an extra watering,and i believe this is what caused this.I will give her a few days and keep a close eye on her.

I think it is overwatering--did the same thing to one of my girls the other day was drunk and gave her too much too drink---looks almost exactly like yours do--just have to wait for her to dry out a bit too see if she recovers--cross our fingers--mine at 4 weeks flowering--at least I did not give my other 2 girls too much...

I'm pretty sure that she is not going to make it.Most of her leaves are dry enough to turn to dust.Mostly the one's where the buds are/were forming.Not really sure why over watering would dry her out like that though?Will give her another day or so and see how she looks,but most likely will have to put her down.There are still lots of crystals around the buds,can i still use those for making hash?