I wonder if the infection from her tooth has made it into the bloodstream. My next step would be the vet. Probably just high dose of antibiotics and supportives like B Complex, Probios and electrolytes.
Could be. Pics look similar. On a chart showing abscess locations, hers are at the salvitory gland location on both sides. The left side is soft and when I rub it, it goes away. Then returns a few hours later. The right, it's firmer and after rubbing it's smaller and there is a hard lump on her jaw about the size of a large marble. Very strange!Besides a tooth abscess, goats can get lumpy jaw which is predominantly a cattle disease. You can look up pictures and see if it resembles the lumps on your goat's jaw.
Good luck