Had the shot at 10am, my arm was sore (like the first shot) by noon. Started getting a headache in the afternoon, but could function. Logged on to a class I was taking at 5:30 and realized I was having trouble staying awake. Didn't sleep well Tuesday night, woke up in a sweat, but no fever. Spent Wednesday with a fever and just total exhaustion. Then, by noon Wednesday, my entire arm started hurting in a different way. The whole arm hurt from shoulder into my palm. It was a strange heaviness, like it didn't have full circulation. Tossed and turned Wednesday night. No headache Thursday, arm pain mostly gone. Still just crazy tired. All in all, not complaining.