I donated plasma twice last week for the first time. There was no issue during either appointment, aside from back of arm pain which I believe was from me being so tense. After, I questioned whether there was tingling in my left hand, and recently my arm has started to ache. I've been totally freaking out over this for days and can't get it off of my mind. Is it possible that I've manifested all of these symptoms through stress? Has anyone else experienced something similar? A lack of anything similar online has led me to this assumption as well, but it's driving me crazy. Any help appreciated.