I'm sorry that you're going through so much angst. You haven't mentioned your age, what you do for a living, etc., but I'm going to type several options.
First of all, if you've had testing done, there are, indeed, results, somewhere. There's no such thing as "no results" when it comes to STD testing, etc.
The hamstring issue could be as simple as electrolyte imbalance, lack of protein in your diet, or not enough salt, too much salt........ I would urge you to go back to a medical doctor or holistic practitioner and avoid trying to self-diagnose. That is a very dangerous path to take, and it doesn't matter whether we see an allopathic doctor, holistic practitioner, or shaman, each of these people have completed rigorous training from a medical school, holistic courses, or a shaman elder that has the knowledge and experience to practice whatever methods his/her expertise.
You didn't mention your emotional health, at all - do you suffer from depression, anxiety, have you experienced trauma, etc? Emotional health can cause - literally cause - severe physical symptoms of chronic illness, especially for people who have experienced traumas or abuse/neglect. It's not hypochondria to seek emotional healing along with physical healing.
So......see some kind of practitioner to sort this all out, medically/physically, and it might be an additional option to engage in counseling therapy to manage any anxiety/depression that might exist.
Best wishes to you.
I just realized who you are OP. We are here to help people but answering is very time consuming. You have been here now 3 years with all different questions but have never made progress. This is what I posted to you a few months ago.
http://curezone.com/forums/fm.asp?i=2165340
http://curezone.com/forums/fm.asp?i=2165610