sudden rogaine shed after 2 years of use

[templetime]

Ive been using rogaine for a few years and noticed it has slowed/kind of reversed my hairloss in some places mildly (I think). Anyhow in september I ran out and a refill didnt arrive until 2 weeks later. My hair was fine however after I got back on it a few weeks later i had a pretty bad shed and now my hair is not looking so great.

Is it really possible for hair to change to this degree just by being off of it/getting back on for 2 weeks and will my hair ever go back to what it was and if so how long will it take?