From your description it is very likely that you are having an infection most probably of your urinary tract
and throat. Proper evaluation by your doctor would have to be done. A throat swap, urine analysis and blood work will have to be done. I will also advise you do a pelvic ultrasound
to make sure that the miscarriage
was complete (early bleeding during pregnancy
does not mean that you actually have completely miscarriage or even miscarriage at all). The ultrasound just to make sure you are not still pregnant.
If your lab tests confirm infection then appropriate antibiotic will have to be started.
If no infection noticed then your problem is like psychologically probably due to stress from the miscarriage, hence you will need to consult with a psychiatrist
Hope this helps