I would suggest that you do go back to the dr - at the very least you would have a name for the symptoms you are suffering. About 10 yrs ago I took the shots that were available for MS. I took Rebif for around a year (among other problems, it gave me the worst migraines I've ever had) and then I took Copaxone for 2 years (also gave me headaches among other symptoms). I have been off the drugs now and DO NOT EVER plan to take the drugs again.
It's been 23 years since I was diagnosed. It has only been in the last few years that I've been really struggling with MS. I'm using walking aids now and we bought an electric scooter last year. What an energy saver that is! I can actually go shopping with my family and keep up with them!