Hi N!
Welcome here, I don't know what the tingling is, sorry.
Suggest you get deep into the diabetes literature, as there is a lot going on. When you decide that you have lost enough weight you'll probably need to carefully add this and that to see how much of what you can tolerate. I don't have sources at my elbow here, but relieving the stress on your pancreas and giving it a chance to heal MIGHT have potential, no promises but currently a lot of research.