I hear you man. This phase sucks, which is why we are both using supplements etc. However, I suspect that because Minoxidil is new to you, there may well be some shedding of weaker hair cause by the topical application, which may not grow back without continuing usage. You stated above that 'hair from donor area is strong, not weak' which is correct, however there is always a chance that some of them will not 'take' well and these may be the ones to shed. There is never such a thing as 100% of grafts growing fully, but Minoxidil should definitely help rather than hinder.
I would consider staying on it for a few months even well after the ugly duckling phase.
That is interesting. how does minoxidil cause the shedding? because of the rubbing? now i'm on it for 20 days, maybe i'll stop, given the things you are saying. i'm not planing applying it longer.