Had a heart attack in ED which ended in having a stent fitted In the hospital they were concerned the blood sugar level was increasing and advise came back to increase my insulin(insuman 25)from 20 units in the morning to 25 and the evening one to stay at 20.i came out tonight and have tested twice with it going up from 16.4 at the hospital to 23 and 25 at home. Had one stent fitted but other arteries nearly fully blocked but echo shows pumping good .Any idea what's going off and what to try The heart attack came out of the blue other than some on off short discomfort for Seven days lasting up to 20 minutes max