Well I dont know much about the fingers and feet problem. But good job. After what it seems like you have been thru with the loss of your mother diabetes is a bridge you can conquere. My ten year old daughter has had heart problems since birth. So you go to the doctor and you will be fine. Keep the faith.
I agree with whisperwolf, Please see a Dr. diabetes is not a curse but it is not something to play around with . My husbad has it and his mother and a few brothers but his mother lived with it for many years and I watched her do well with it she evon at bithday cake at partys she just watch what she ate for the rest of the day ,But she live a long happy life with it because she took he meds and watched what she ate ,Just as u could do if this is what it is . In ur case there might be something more goring on that might be something simple if u take care of it now but waiting can make it worse so please get checked out ..Let me know how ur doing ....
I am sorry about your mom. For you, diabetes is a concern. You should really see a doctor for testing. Diabetes is not the curse it once was, as it can be managed with medications and proper diet. Also with being flatfooted, you may be having some issues with pain in your feet that radiate. You may consider seeing a foot doctor who can prescribe orthotic insoles for you.
Hope you feel better soon.