Not sure what your "crappy" side effects are.
Diarrhea.

The first time I took it I also got the tingling, metallic taste and nausea. After reducing the dosage these three side effects mostly went away.
Normal dosage for AMS is 125 mg twice a day as the maximum, and some people take half that. Were you taking more?
I take a total of 125 per day.
When I am not feeling well, but not bad enough to be in bed and no fever, I'll still do a workout, but I just go lightly
That's what I usually do, but when I just couldn't kick it, I thought I was doing more harm than good. It seems now that I've developed allergies. Sunday night, after being away from home for 24+ hours, I felt great. The weekend prior I was in San Diego and felt great there too. Within 12 hours of being home, I was miserable again in both cases.