The past three weeks, I’ve had excessive sleepiness and dizziness, sometimes nausea, and tingling/muscle weakness with it, suddenly come on during the day at least twice. I’ve had at least 7-8 hours of sleep, except twice in the last month, so I was wondering if allergies can cause this, they’ve been especially worse this season. Or maybe I was getting over a cold, but it’s hard to focus and get work done, and it seems to happen randomly while I’m driving, waking up, or during work.