Welcome to HCM
Your symptoms duggest that you are having peripheral neuropathy
because of diabetes .
Hence kindly visit a Neurologist
and after detail neurological examination a Nerve conduction study
may be performed and along with tight control of diabetes .
and other drugs which comes on prescription may be given to improve your problem.
Any other problem related to nerves can also be detected.
If by chance you use tobacco/smoking it should be stopped completely.
Good luck to you