yo Sampas, im not sure about your plant but if you can post more pictures of different angles ? because I had those same spots and edge on my plants before....also it was very humditiy at my home, its outdoor grow so i found out that mine was foliar diease, issue with PM/mold, if you use manifier on the bottom leaves with white smear ? its season to season of PM or leaf diease...did you check outside of any tree or plants surround by ya ? some of them are resistant to that foligar diease so you should see some of plants already spotted white or wilted...once again i cant say for sure about your plants...at first I thought it was nitrogen def due nute lockout ? but everything is fine...can you picture bottom of the leaves ? it will help more. thanks