OSTARINE, Shut Down Week 1?

I started Ostarine on Nov. 30th, 20mg ED. its day 6…

Deff increase in vascularity
great pumps
I got no sleep last night but decided to work out anyway because i hadn’t in 2 days. (it’s finals week) I had a mediocre workout but I did notice an extra 2-3 reps every set. Endurance increase already?

BUT…

I’m noticing a decrease in libido and maybe a little shrinkage. Is this just in my head or could it really fcuk up the ole HPTA that fast??