Am i okay?

To start this off I'm super scared something is wrong with me.... I have been experiencing some new weird feelings. Like random motion sickness. Playing video games, walking around my apartment (currently unemployed), even sitting down doing nothing. Not even watching TV because I gets so bad. I have a constant headache/ migraine, heart burn and nausea. ( haven had the last two since I had my gallbladder removed).... What's some causes for these?