<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hey, I am a 5 6 27 year old female that weighs 135 pounds. I have been a floor nurse working night shift for the past 5 years. I have had no health problems until working nights. In 2008 I ran a high fever and was diagnosed with mono. Last March I started to get occasionally lightheaded and developed pressure headaches that still come and go. This past January my legs and arms started to feel very weak like they were heavy to lift. I thought I had the flu although I had no fever. I rested for a week and felt better but it has come on me again and has lasted for several weeks. I just feel weak in all my extremites. I also took Klonopin for about a month for the headaches and have taking restoril and ambien in the past for sleep. I haven t taken any medication for the past 3 weeks but vitamins and occasional tylenol pm. Do you think this new onset of weakness is related to anything else? Could it be a late side effect of the medications I took?  <response>: Hi, Thanks for your question. I do understand your pain and discomfort. I have seen many cases with similar complaints. Please find my advice below-:1Please do a clinical exam euro as you mentioned weakness and if any positive finding comes then do MRI otherwise not.2Secondly Do fasting Blood sugar and TSH3Do full blood count with differential as you have mentioned fever4For your headache please go for MIGRAINE first then others and check all trigger points first which leads to it then go for treatments. So do what I told and DX is minor. I hope I was able to ad Chat Doctor. If you have any further questions, please do not hesitate to write to me. Wishing you all the best. Thanks, 