What's goin on fellas. Just a quick question.. I am on day 34 of a 10 weeks Prop/Tren cycle. My doses are 100mg/65mg ED. The last couple days I have been breathing really heavily.. and it's just when I'm sitting around too. I seem to be short of breath all the time. Is this a side effect of the Tren or what? Could it be from Clen?