Swollen extremities symptoms and conditions

My son Emmett was put on Omnicef for pneumonia and ear infection. On the second day of being on this drug he had terrible diarrhea, black and watery and he would scream every time he was pooping. He wouldn't sit and would cry if you tried to lay him down to change him-this made me think his stomach hurt pretty bad. Sometimes he would stand there and look at his stomach and just scream. On day 10 of Omnicef he had something on his stomach develop that looked like a heat rash that started off as white bumps then turned red. Two days later (2 days after the drug was all taken) the bumps became bright red and were everywhere. He also had swollen knees that were hot to the touch and wouldn't walk around. We went to the doctor and he said it was a reaction to something he ingested. He said we should give him Benadryl and just watch him. The Benadryl worked for a couple days then stopped working all together. New red spots would come back as soon as the others went away. Three days later we were headed to the ER because of swollen feet, all of his toes connected and his feet were so puffy he wouldn't stand on them, they were also hot to the touch. Luckily we saw a different doctor and he did some blood tests. It turned out he had mycoplasma infection which is also knows as walking pneumonia. He was given Zithromax and was better within 12 hours. The red spots and bumps and swollen extremities were all cleared up. I don't know if he was allergic to Omnicef because he is allergic to Penicillin or if he was just given the wrong drug for the walking pneumonia and it wasn't getting any better. It is definitely worth getting a second opinion in the same day after going through this last week.

I started taking Lotrel in January and was thrilled because my bp was down from 165/97 to 100/70. Atenolol caused extreme fatigue to the point where I thought I had leukemia or something. I couldn't bend over to pick up something off the floor without feeling like I would pass out, my heart pounded at night, I had a weak pulse. And my bp was 165/97.
My former doc said this was all "anxiety".
My current doc is pleased with the lowered bp.
HOWEVER, I can't lose weight, and I have the "crickets" sound in my ears most of the time. Needless to say, I have leg pain, swollen extremities, and insomnia.
This is a vicious cycle-- lose weight to lower bp, lower bp to have energy to exercise to help lose weight. Between that and the crickets, I'm feeling pretty "anxious".

I've been on neurontin for about 3 years. I take 2400mg per
I have all of the ill effects mentioned above plus one more. My vision is impaired 40 % worse than when I first started this medication. I would have to say that I too am very frustated with this medication now. I have short term memory loss, weight gain, chest pain, constipation, swollen extremities, no sex drive, headaches, excessive feelling of euporia, depressed, and much more. The one thing I can say is that it did help the problem for which I was prescribed. Chronic neck pain/spasms. Go figure!