Suggest Cause Of Weight Loss And Fatigue After Suspected PID Treatment

I recent had suspected PID treated with antibiotics, now lost 5kg in weight last 5 weeks and fatigued afternoon. Also raised throat gland and groin and generally not myself I m really worried as I was anaemia after birth of my son for 6 months he is now 2 and have right sided intermittent sciatica could all this be linked?