Dear sir i can understand your concern.
I am very happy to see that your sugar are under control.In my opinion the problem what your are facing might be due to two conditions
The first scenario can be due to
hypoglycemia due to very tight controll.
The most probable Second scenario is may be due to
diabetic neuropathy.
in diabetic neuropathy you will feel numbness of feet.
i suggest to do some test for diabetic neuropathy.They are
1.vibration perception testing
2.plantar pressure analysis.
3.
nerve conduction study.
in some conditions due to compression of nerves in
spinal cord also will give you same picture.
check your blood sugar during
tiredness to rule out hypoglycemia.
I suppose I have given the desired response if you have any other query please write back.
Otherwise please accept & rate my answer. I will appreciate your review about my answer.
Best Regards.
Dr Vamsi Krishna
Consultant Diabetologist