from that picture it dosent look as though u are balding at all.
id say for you the shedding is just the hair growth cycle. so u lose hair but new hair grows.
try a few products at the same time, plus a shampoo or something.
3 months isnt really all that long, neither is 8 months. ive been on rogaine for like a bit over a year and have only had slight success, but couldnt imagine going off.
it sounds like its worrying you. do something about it, otherwise u will start to get even more anxious about it.
see a doctor, or start with something light like some of the shampoos that people are using. i.e. Nizoral .