Losing my dream of becoming a neuroscientist

[rant] I’ve been in love with science for most of my life. I’m planning to go to grad school in neuroscience, but lately that dream feels more and more unattainable. I’m currently a junior in college, and every year my symptoms just get worse. I can barely get through a lab class because I can’t stand for the full time, and my hands shake so much. I don’t trust myself with a beaker (have dropped a few on the floor) or with anything precise (I’ve punctured agar so many times). If I can’t do these basic lab skills, how am I going to work with brains and neurons? My grades are starting to slip for the first time in my life because I can hardly do any work before I need to lay down again, so I either do an assignment poorly or not at all. I don’t have accommodations because I’ve only been diagnosed by my PCP, who doesn’t want to put it on record until I’ve seen a cardiologist. I’m trying so hard not to be hopeless, but it’s so hard to feel like I’m letting everyone down.

Is anyone here working in science? Do you have any tips?