These­ symptoms signify heart trouble. It could be a he­art attack or angina - artery blockages. But muscle strain and indige­stion can also be possible causes. If fee­ling such things, talk to a cardiologist

Some conditions can be resolved through rest and physical therapy. Be sure to tell your doctor what you’re experiencing, such as pain or difficulty moving. Knowing the cause of the problem can help determine whether or not an operation is required. You must follow the advice of your physician regarding the most appropriate treatment for yourself.

For pain relief in degenerative disc disease, 
As per alternative medicine therapy, pain is due to imbalance in the body I.e. acid/ alkali imbalance or yin or yang imbalance
So first step is to give balancing acupuncture points and then target points, when 50% pain reduction is achieved, moxibustion, cupping, electro stimulation and seed therapy, diet tips and physical exercise is given

After the massaging of muscles, it's frequent to be struck by pain in your leg post-workout. This discomfort is often a result of the muscles becoming stronger. Sharp pain is an injury if you are unable to move the leg as usual. To help you, try resting, applying ice, and stretching gently. 

Perhaps your backache is associated with nerve injury. I recommend that you see a neurologist for an accurate diagnosis and treatment. They will perform further tests and establish what is causing your pain.