Tweeti think that tren thing came from pheedno, if i'm not mistaken.
i've luckily, never had it happen. i've always kept a glass of ice water close when injecting and would inject really slow so if i felt it coming on, i would sip on the water. shortness of breath, however, is a side effect of tren throughout the duration of the cycle. some get it, some don't. just one of those things "everybody's different".