Symptoms of TMJ?

So I have a lot of problems with my teeth because when I was young I had really bad acid reflux and no health insurance.Now Im a college student with no dental insurance and can't afford to get them fixed.They dont really hurt I just have a lot of cavities but I brush excessively so I wasn't too worried.Now however for the past thee months the muscles in my jaw just below the joint have been stiff and painful.My left ear pops constantly and it feels like Im underwater.In addition my lymph nodes under my jaw are all swollen and painful.I tried taking antibiotics in case it was just a sinus infection but it hasnt helped.Any advice?
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Common symptoms of TMD include: Pain or tenderness in the face, jaw joint area, neck and shoulders, and in or around the ear when you chew, speak or open your mouth wide Limited ability to open the mouth very wide Jaws that get "stuck" or "lock" in the open- or closed-mouth position Clicking, popping, or grating sounds in the jaw joint when opening or closing the mouth (which may or may not be accompanied by pain) A tired feeling in the face Difficulty chewing or a sudden uncomfortable bite as if the upper and lower teeth are not fitting together properly Swelling on the side of the face Other common symptoms include toothaches, headaches, neckaches, dizziness, and earaches and hearing problems.
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