It's been awhile. Toes numbers have been alot lower for pre shot.

Hello everyone, my big man's numbers have been alot lower these days for his pre shots. He is currently on. 0.5u twice a day (past few days) which is a drastic decrease from the beginning of the year (3u). I am going to try and get more mid day numbers when I work, but it can be hard sometimes bc I am exhausted from working. Even though he is in good ranges, he seems to be less active and just acts a bit distant than he would normally. Just wondering if it is normal for him to be that way, is his body just adjusting to more normal numbers? Please don't yell for having different doses the past few months, it honestly was working well for him. But he is 16, and I'm wondering if I'm doing something wrong, or maybe he is having joint issues from the neuropathy.