Quick answer/opinion please ....dont want to lose my mother!

Hey guys Im in need of some help. My mother has some major N and Cal Mag def going on. It took me a bit to narrow it down to this but now im almost sure this is the problem. Now i went away for a couple days and when i came back she was thirsty so i gave her a good watering. That was two days ago and the soil is still wet. The defecincies are taking over the plant and im worried if she doesnt get a feed soon she will suffer.

My question:
Should i wait until the soil has dried out to feed......this meaning that she will go a few more days starving of nutrients. Or can i feed with damp soil. Either way i think shes gonna get stessed. Which is The lesser evil???

how long has she been in the same pot and what size is the container shes in?can you post a pic?

and yah you can water moist soil , if you watered 2 days ago then if youre sure of what the prob is go ahead , overwatering is like when people have there first plant and think it needs water every few hours or twice a day and chit, if the last time you watered was 2 days ago and the soil is still moist dont worry about overwatering , you wont overwater watering every 2 days bro , unless you dont havee holes in the bottom of your container , i only say that cause first time i used home depot buckets i forgot to drill holes in the first one .