Welcome to HCM.
I am suspecting muscle cramps
which sometimes present as sudden numbness
and then with pain. Muscle cramps are most commonly caused by dehydration
, rigorous exercise or low magnesium
and calcium levels. I suggest stretching exercises to relax the contracted muscles. Adequate water intake preferably 3-4 liters per day and a healthy diet with good magnesium and calcium rich foods. Include milk and milk products in your diet. Thanks.