As we are not doctors, we cannot say if your doctors suspect Lupus. Your ANA was pretty high, your rheumatoid factor was >10 and ESR a bit high. These do not necessarily indicate Lupus, but they may be an indication of some type of Auto Immune issue. Your doctors will have to run more tests, take your medical history, and take into consideration your symptoms before any diagnosis is made. I wish that I had answers for you, but at this point, there are no concrete answers and we cannot say what-if any-auto immune issue your doctors may suspect.
I wish you the very best and please, keep us posted.
Peace and Blessings
Look For The Good and Praise It!