Keflex and medication

I was prescribed a generic for keflex (cephalexin), 500mg three times a day for 10 days for cellulitis(skin infection through an insect bite). My gastrointestinal tract went totally haywire as soon as I started taking the medication, bad stomach upset. The infection subsided in a couple of days but started having stomach cramps and the diarrhea continues for almost a month till I started taking probiotics to replenish all the flora in the gi tract.
It has been almost a month after I stopped taking this medication and now experience phantosmia( phantom smell ), in my case smelling smoke/exhaust fumes at random times throughout the day. I mentioned this symptom to the doc and according to here, it is one of the side effects asked me to hang in there for 5 more months before I can consult an ENT specialist.

I was prescribed Keflex 500mg to take twice a day for strep throat. Since I started this medication I also came down with a cough, nasal congestion and I am soooo tired! I cant stay awake! I also have had problems with bowel movements. I took magnesium sulfate to try and loosen things up. It took two days before I finally had a bowel movement... very painful and bleeding! I don't know if the Keflex has caused the Castro symptoms or the terrible feeling of being tired all the time but it has been miserable! I have had a mild headache also, but nothing I cant live with. Just wondering if I should stop the medication? I started this on Wednesday of last week. It is now Monday.

My daughter,who is 11, was given Keflex 3 times a day to treat a staph infection. She has taken 6 days of the medication and now has a terrible pain in her stomach. She was told to stop taking the medication but has not been able to eat or go to school for the past 4 days.

I have been taking Keflex, 500 mg, 4 times a day now for 8 days. I have gained 6 pounds! I eat a lowcarb diet, and do not eat sugar. I am wondering if Keflex is elevating my insulin levels? I have four days left and am very hesitant to continue this medication!