Out of curiosity why did you turn down the jab? (Tried it myself, wasn't painful but didn't work for me) did the nurse mention one of the SLG2 inhibitors for consideration? canagliflozin, dapagliflozin, or empagliflozin. These work by holding excess glucose in your urine and you pee them out, they can cause thrush if you don't drink enough and DKA if you try and follow a keto diet. but reducing your carb intake really is your best bet. Was it just Sitaglyptin that caused your upset stomach are there are other gliptins.