good balanced diet with 10 to 20 mins early morning casual walk will help you .
standing or sitting long time would cause venous stasis in the lower limbs
which leads to pain and numbness
and purple colour as its deoxygenated blood so keeping moving your limbs and very often take some small walk every 20 mins after being in same position.metoprolol
has nothing to do with your present suituation when it is indicated correctly for its purpose.check your pulse again and see if it is below 60/min then may be a factors for all your symptoms. jst check your pulse rate