Hi,
Recently I've been having lack of sleep due to continuous exams, when I wake up this morning, I get unusual goosebumps which it lasted for around 30 minutes until I wear myself a jacket. I don't have any flu symptoms, could this be caused by my lack of sleep? I've been sleeping only for 3 to 5 hours for the past 4 days. And even though I did slept for 8 hours, it was 6am to 2pm, which makes me feel extremely tired after I wake up.