Amoxicillin and sinus

I took amoxil 2 weeks ago for sinus and the third night I was vomiting, the runs, bad aches and pains all over. I was so sick I actually thought I caught food poisoning. I started the amoxil again three days ago and today have had bad ached and pains all over my body like flew symptoms so now I have worked out that it must not agree with me. I have stopped taking them tonight as I don't want to vomit again. These surely can't be good for you. I will not take them again and will mention this to my doctor so he can note this down so I am not prescribed them again.

My Husband has taken this all his life of course like many of us have as a child and teen. He is now 27 and started this on Tuesday for a sinus/upper resp. infection. Evening of day 1 with first dose and day 2 nothing. Day 3 he started itching and didn't know why. Day 4 lips, hands were swollen. Tongue slightly swollen. Hives started on shoulders and inside of thighs that night. Day 5 swelling down after starting benadryl but hives all over body or rash all day off and on. Day 6 back to the doctor who said that he had an allergic reaction and was now allergic to Penicillin.
Strange but it is true that you can be allergic even after taking it for so many years beforehand.