Leaves yellowing during flowering...

I just noticed yesterday plant was yellowing and browning/dying at bottem
what can i do to help it ?
water every 1 or 2 days food every 3 to 4 to a week
my room is very cold at night alot of moister

You need to feed your plant more than once every 4 weeks. It looks like it needs some magnesium. Pick up some cal-mag + and your plant should get better once you apply that stuff. What type of lighting are you using? That thing looks really stretched out

It's day 10 of flowering and a few of the bottom leaves look like they are fading to a yellow color... Almost like they are bleaching. Is this normal? Someone told me that the plant will die from the bottom up using the energy stored in the leaves to produce the buds... I have researched it and read different ideas about it. It has been completely green up until about 3 days ago when I started noticing the yellowing start to fade in. The plant is very healthy and I haven't used any nutes throughout the whole grow.

So, is it normal?

It looks like it might be mag deficient. Is there anyway you could get to a hydro store? If you can pick up some cal-mag + and you will be set. If not I have heard that adding epsom salts can fix the problem too. I think a 1/4 teaspoon per gallon of water

the plant is now finnished the veggitative stage and the plant is using nitrogen in bud production, nitrogen is stored in the leaves mainly fantails and when the leaf has been used it will simply fall of, so in conclution it is perfectly normal what is happening.