I have a pinched nerve on my spine in the l5 region and i am constantly dizzy and i get headaches 5 times a week. what do i do?

Unrelated: The lower back is very unlikely to cause dizziness and headaches. I would expect that with a neck problem, but not a lumbar 5 disc problem. If you are anxious and tense about your back, it may indirectly be related. I would recommend some core exercises and stretching: pilates/yoga/piyo, lower your stress, consider mckenzie pt with a doc's rx, if no better, time to see your pcp and get checked out.