I Have Not "felt Good" For Past Few Weeks, Spend

I have not "felt good" for past few weeks, spend most of my time lying down. I wonder if Gabapemtin (4 400mg a day, can cause the dizzy when standing, lethargy. fatigue, feel terrible like flu, depression. I also have trimmer in left hand. the are some side effects listed on webmd. I cant get into doctor for 4 weeks.