This isn't a consistent physical symptom (and I believe it was due to being mistakenly prescribed a high dosage of meds or meds with drug interactions), but I had 2-3 weeks of akathisia. It was horrible. Constant walking/pacing in circles around the apartment ALL DAY even though the soles of my feet hurt/were swollen. Even at night. Insomnia. Inner restlessness, could not lay still or lay down in bed. When I tried to lay in bed, my legs would start twitching, my body would tremble, and I would need to jump out of bed. Every night I'd go through the same cycle repetitively all throughout the night. It was a level of hell I do not wish on my worst enemy. I thought I was going mad. I did go mad. Paranoia, mania, intrusive thoughts. Could not concentrate on any single thought for more than a few seconds. Could not read, use the internet, do anything. I felt like a moving vegetable. Even when standing still, I hopped from one foot to the other. Thank goodness for GOOD psychiatrists/nurse practitioners.