Post surgery health issues. Needles?

I had MVR repair in 2008 and had MVR replacement 3 months back. I have sutures on chest and thigh region. My thigh numb and causes pain. My PT INR report also not stable. I can't sleep at night as i am having pain in my thigh region and near sutures on chest. My neck is also paining horrribly. After sitting for a while on chair and when I am getting up i feel more pain in bones . whatever i eat gas is forming in my stomach. 1.what are reasons for this condition? 2. How can I improve my PT INR? 3. What to eat ? 4. When will my sutures and numbness heal in my thigh?? 5. Why I am sensitive starting point of sutures? 6 why my neck is hurting? 7.why pain in my thigh is like pricking needles? Thankyou for having a platform to express my pain. Thankyou once again