Well if you do, and your tonsils look gooey (without samoth's help), please go get a rapid strep test. If its viral, then great, you can just wait it out and it'll go away, but if its Strep pyogenes (rapid strep wont give you strain specific, but its a good bet that its Strep pyo), you can treat it and make sure it doesnt go looking for other parts of your body to hang out in.
Totally worth saving the heart valve damage imo. Not to mention joints, kidneys, and everywhere else your body likes to get autoimmune on itself....