I had muscle fasciculations for many months now, particularly in the legs. During the last 18 months I have been working a lot (>12 hours a day as a software developer, 6-7 days a week) and had little sleep and a high level of caffeine consumption. Lately, the fasciculations tend to occur more often and on various parts of the body (mainly the legs and arms and my left eye lid). I have learned to live with these symptoms. I should also note that my muscles are rather tense as a result of spending long periods of time in front of a screen.
What really worries me is that I had a headache for over 10 days now as well as a low energy level / fatigue. The headache has been subsiding a bit every day. The only form of headache I now experience is a light "stab feeling" either on the left hand side or the right hand side nearby the temples. Today I have been experiencing nausea. I did not vomit but was afraid that it could happen. I am wondering whether these could be symptoms of a brain tumor and which doctor I should see.
Thank you for your help!