Need Bedroom advice. NSFW

My wife is type 1 diabetic. We used to have a very active, very enjoyable sex life. But then things changed. Her endocrinologist kept cycling her through all these different types of meds and insulins to find the right combination to help her balance her levels. And they seem to have succeeded. Unfortunately a side effect being, it's become seemingly impossible for her to experience an orgasm. Regardless how much she is enjoying the sex, she just can't peak. Her doctor did say it's a known side effect.

While she still enjoys the sex, I find I'm less and less enthusiastic about it, knowing I can't bring her to orgasm anymore. Has anyone else experienced this problem and if so what did you do to fix it?