Rogaine dependency?

[Plan C]

On Monday night I was so intoxicated that I forgot to use regaine foam before going to sleep. The next day, I shedded tons in the shower. Shedding from Proscar had stopped recently so this was totally out of the blue. Has my scalp become dependent on regaine? I remembered to take 1.25mg Proscar that day so I can't think what else might have caused this major shedding.