I've found three small knots on my right thigh. One on the back of my thigh, one near the groin, and one near the knee. Along with mass/swelling. Help?

Need to r/o infectio. You need to be certain these are not infected lesions. You need to discuss with your physician consider to biopsy and culture these to help clarify the diagnosis.
No clear answer. on the internet. Check with your doc. This should be checked ASAP. Ask your doc about blood testing or needle aspiration biopsy.