Diabetic condition symptoms and conditions

I have been taking 1,000 mg for about 6 month to lower my LDL to 70 mg from 107 mg. I also take 81 mg aspirin about 30 min. before I take my 1,000 mg Niaspan. My HDL and triglycerides are fine. Lipitor did not lower my LDL and Vitorin caused the tingling in my right arm. After discontinuing Vitorin, I was put on Niaspan. The flushing is OK but the itching on my back was horrible not to mention insomnia. Itching comes and goes but what worries me that recently I have developed the pain in my toes, (excluding the big toe) and when I get out of my bed my feet do not want to support me for at least 5-6 steps. I have been always able to walk for miles! I realized that one of the side effects of Niaspan is elevated concentration of uric acid (gout) or glucose (diabetic condition).
Any similar side effects?

My doctor gave me 5 'samples' of Levaquin 750mg for a sinus infection.

2nd night I had frightening heart palpitations while sitting watching a movie with family. Later that night experienced insomnia, depression, body aches and extreme cold feeling all over despite blanket, comforter and furry throw.

3rd day I experieinced severe nausea, dizziness, over-heating, dry mouth, body pain, headaches and motion sickness on pubic transit about 2 hours after dosing. Almost passed out. Was shaking, feeling hypoglycemic. Curled in a ball praying by the end of the 45 minute bus ride.

Stopped for water and a bagel, thought it was awhile since I had eaten. 2 hours later after my appointment, same thing again o the bus ride home. Took me 2 hours to calm down.

Looked up side effects online and was shocked. My doctor knows I had a head/neck injury ( 3 dislocated vertebrae ), knows I have prescription Vicodin and Tylenol 3 for pain, but fortunately I only took one Tylenol 3 today and no Vicodin for weeks. But I did take Advil yesterday, another pain reliever my doctor knows I use, but conflicts with Levaquin.

Doctor also knows that I'm concerned about possible pre-diabetic condition as mother has developed type 2 diabetes.

Furthermore, he knows I have had bad experiences with previous prescription medications including asthma inhalers destroying tooth enamel and depression reactions to Singulair.

Apparently Levaquin and Singulair both have suicidal depression side-effects.

So why was this drug given to me?

Basically, who do I sue?

I just started taking Metformin for PCOS and suddenly I began having severe muscle pain on my left side, upper thigh area. So severe that I can hardly walk, sit on a chair or get up once I do. I have had no problem with mobility previous to this. I had severe, runny, almost water-like bowel movements so I decreased and then gradually increased the dosage over time which helped resolve this (sorry to be so graphic). I describe the pain like a pulled groin muscle, although I've never experienced that, but that is the area that the pain is in. Has anyone else experienced this type of muscle pain??? If so, what helped if anything?