I would also be concerned given your symptoms and family history that you have a DVT. You should seek medical attention for this. Have an ultrasound
scan of your calf to look for a DVT and if you have one then this should be treated with anticoagulant
medication. In light of your family history, if you do have a DVT you should have testing for certain blood conditions that might predispose you to this type of problem as they can run in families.