I was diagnosed with diabetes about three years ago. I was experiencing weight loss and blurred vision. My doctor first tried oral medications and played with the dosage for the past few years. I was taking 1000mg of metformin twice a day, actos 30mg once a day and glyburide 5mg twice a day. With these medications I am also riding a bicycle about 20 miles once to twice a week. I should also add that I am a chef, work long hours and eat small meals all day long while avoiding simple sugars and processed flours. With these actions my BGL were always over 200 while eating and never below 160 while fasting. Now the doctor has put me on a insulin regimen. Lantus 10 units at bedtime and humulin r using a sliding scale. The sliding scale is 200-250 2 units, 250-300 4 units, 300-350 6 units.......
He also told me to discontinue taking the glyburide but continue taking the actos and metformin. I've been on this regimen for about five days now and my BGL is through the roof. I've been checking my BGL in the morning and injecting the humulin r using the sliding scale. My morning BGL has averaged around 260 so I take four units. (Before today without realizing it I was doubling my dose due to my ignorance on the syringe having two units per line scale :dizzy: but only with the humulin r and not the lantus)

A few questions:
Can I mix the lantus and humulin r in one syringe?

Can too much insulin raise my BGL?

I just caught a bad cold. Does this raise my blood sugar?

When should I check my BGL with this sliding scale and do I check and adjust it before eating or after?

After eating dinner last night consisting of shrimp and brown rice my BGL hit 304. How do I avoid this?

I know this is experimental with the meds with my DR looking for the right combo but shouldn't some of these questions have already been answered by him and I shouldn't feel so "in the dark" regarding all of this.

Thanks in advance for any advice and shared knowledge.