aahh help please!

hey everyone! i need your help please, My plant has been fine an she has been in the flowering cycle for 3 weeks, but yesterday I went to check (as I do everyday several times) an she was all droopy and looked lifeless, the leafs are curling an one even fell off. She has had plenty of water and light and nothing out of the ordinary has happened. Can I save her? thanks again!

if you havent rlly done anything different than usual the main variable would be Ph, whats it at

Absolutely no idea. This may sound bad but i have never bothered to check. But it would make sense as I was using water from somewhere else than usual, i didnt think that would make a difference. She is back on normal now, will she get better? Thank you!