My husband has type 1 diabetes and can not control it very well? My husband is 28 and has had type 1 for the last 11 years. He is fit and healthy and exercises a lot. Over the years the frequency of his hypos have become greater.

He can rarely detect the signs himself now and unless someone else points it out to him he is a gonna.

He has had 7 episodes at night since the beginning of this year where he has gone low to the point of having a fit. Normally I wake up to his signs of his sweating, twitching or being restless and am able to help him avoid a fit, but since the beginning of the year these signs have gone too. 

He usually keeps his sugars around 5.5 or 6.

Does anyone know how he can get his early warning signs back and how he can control it better?

Oh he works shift work - not night shift though.

Summarized question: Does anyone know how he can get his early warning signs back of diabetes and how he can control it better?