On July 13, my husband had fasting bloodwork done at his cardiologist's office. On Tuesday, July 20, he was told his blood sugar was 312. He doesn't go back to see the doctor until this coming Tuesday, July 27. I'm very concerned - he is taking nothing to control his blood sugar, so will it continue to climb? He has not been diagnosed diabetic (I assume that's coming this Tuesday!), but there is a family history )both parents, aunts, cousins). He's not feeling well at all - no energy, sleepy, pain in his legs all the time. Is it safe to wait until his doctor's appointment or should I take him to the ER? I'm very worried. Thank you so much!