Too many variables to determine which areas need to be tweaked without the aid of a logbook. Are you Type1 on MDI? (Sorry, Ralph, can't remember).
Are you splitting your Lantus 50-50 (20 units each dose)? I do 14U Levemir in the evening and 13U in the morning.
As mentioned, do you have an I:C ratio for each meal? Mine is 1:10-1:12-1:8 for breakfast, lunch, dinner respectively and 1:10 for evening snacks over 24 grams of carbs, for example.
Have you done some testing between 2:30-3:30AM? This can sometimes help determine Dawn Phenomenon or if your morning numbers are a rebound high from going low.. Have you tested at the 2-hour post prandial mark to see how you process particular meals?
If you're going low before dinner then RAISE your lunch I:C ratio from 1:5 to 1:6 or 7 (not lower j-web). Do you exercise in this time frame. That could contribute to your pre-dinner lows if you're not compensating for it (i.e. extra carbs for exercise).
Again, and I say it a lot, a logbook becomes invaluable when you're trying to tweak your insulin regimen. Patterns will emerge, I guarantee
- Phishbowl (Type 1 since Jan'05 - Levemir, NovoRapid)
"What's Not Measured Is Not Managed"
"It is impossible for a man to learn what he thinks he already knows"-Epictetus