Sorry didn't see this until Dman sent me a private message.
First things first.......the heart on fire concerns me, make sure you are not having an allergic reaction because it can be deadly. Any itching or rash? If it feels like heartburn it could be irritation of the esophagus...make sure you drink lots of fluids when taking the pills so the residue does not sit inside and burn the tissue.
The ass could be explained from the antibiotic just wreaking havoc with the natural gut flora and causing the shits. Clindamycin is notorious for this and can develop into pseudomembranous colitis so stop taking if you develop diarrhea. Also start taking a probiotic immediately and continue for 60 days after finishing the antibiotics to help your body rebuild a healthy GI system.
I like to drink as much as anyone but would advise avoiding alcohol until the infection is under control
*************Clinda is not my drug of choice except in people allergic to penicillin**********************
I prefer amoxicillin or Keflex and add Flagyl if it is severe
Now the bad news.........crowns don't stop pain or infection so you are looking at a root canal to save the tooth before restoring it with a crown but hell you are a hockey player so just pull it!
People die from tooth infections so if you have trouble breathing or swallowing head to the ER immediately