hello kay meyer,
i would suggest get a normal urine test done with a urine microscopy and culture done to rule out if you have any kind of the infection and the antibiotics you have been given really worked or not.
also get a blood culture
done with a hiv test
to rule out why you are persistently having high fevers.
would also help to rule out stones in the kidney
and any other abnormality present.
the reason for you having constipation
is because you have been on many medications just increase your water intake take alot of fruits and vegetables, take fiber foods this will ease off the constipation as well as your prediabetic state which dont require medications.
hope to have answered your query
get well soon and takecare.