Because of a probable infection I'm supposed to take antibiotics. They make me feel worse. Joints hurt (inflammation, I guess) and muscles feel weaker and ache. This one is Clindamycin. I had the same aches from Amoxicillin and they lasted for a while after stopping. I read some bad things about it, but all the strong antibiotics have some bad effects. I am weak to start with. I'm afraid the good bacteria are being killed and bad bacteria are multiplying like mad. Should I eat yogurt or take probiotics pills? I would rather skip it all and take some herbal remedy, if I could believe in the herbs and get them from the local store. I also don't know if I should take less than the full prescribed 300 mg. Prescribed to take every 6 hrs. I am way less than 150 lbs and I am so sensitive to drugs and supplements. I think I have a CYP450 problem and metabolize differently. Want to be sure I don't under-dose but some adults take only 150 mg.