I have started going to Gym to try and improve my fitness and control my diabetes better. I was advised by my Diabetic Nurse that the working out will help control my diabetes and also my blood pressure. I take Humalin M3 twice a day 40 units in the morning and 40 units at night. I checked my blood sugar level before going to the Gym and it was 12.9. after the gym I checked again and it was 3.8. I had two small oranges straight after my blood sugar level readings. When I went home I then had a bowl of Museli ( 18 grams of carbs) with milk and a slice of wholemeal bread (14 grams of carbs) I then waited 5 hours before I had took my Insulin. Because I was advised by my Diabetic Nurse to reduce my insulin after excerise I took 35 units. I then had Dinner which was Chicken Breast with wholegrain rice (because it was Uncle Ben one serving contained 31.2grams of carbs.. I then checked my blood sugar level at 9:30 which was 2 1/2 hours after meal and it was 1.9. I am shocked it went so low because of all the carbs I had after the Gym. I then had 2 slices of wholemeal bread, banana, 4 sweets (skittles). I then waited 1 hour and checked again it was up to 4.9. I then woke up about 2am and my blood sugar level was 1.8 I really do not understand why my blood sugar was dropping so quickly even after the carbs after the Gym.From my carb count after the Gym and dinner my meal I make it over 60 grams of carbs so I do not understand why my blood sugar was 1.9 at 9.30. If anyone can help to understand I would be great up.