Drug factive side effects

I was treated for a sinus infection with the drug factive.  A while after taking this drug, I started feeling even worse, episodes of blurred vision, tingling and swelling in legs and feet and the feeling of bee stings.  Headache 24 hrs a day 7 days a week, mostly dull in the center of the brain, swelling of face and it appeared to me my eye was slightly bulged.  All of this taking place at different stages.  I returned to the DR that prescribed the factive and he sent me for mri brain and sinus ct. Sinus CT clear.  Brain MRI showed some t2 brightness.  He felt not causing headache.  Really for the most part no sinus drainage.  Any way, I headed to ENT and he sent me packing said nothing was wrong and I should see Neuro,  he said he could not see anything on the MRI and was most likely migraines.  I asked if you could have a migrained 24/7 and only sometimes had to take tylenol.  He says yes.  Eye Dr could not find anything.  Symptoms of tingling and bee stings pretty much all over now.  Headaches about the same.  Muscle weakness and I feel like detiorating, so went for a walk, big mistake, could barely walk for a week.  Now shoulder pains.  No answers.  Could this be from Factive and any studies showing how long this drug stays in your system and it this will ever go away or something that I can do to prevent it from getting worse.  Waiting since December to wake up and find this is all over with.  Any answers would be helpful.  Thank you.