Awesome name by the way!
Welcome to the forums and thank you so much for posting and sharing your situation with us. This is an extremely difficult and challenging step to take and shows you have a strong desire to improve your condition. Posting and allowing people to understand you and what your going through shows extreme courage, resilience, strength and persistence and for that you should be extremely proud. You have been through a great deal and you are an inspiration.
Health anxiety is absolutely a hard condition to live and deal with and I suffered from health anxiety for five to six years so I can relate to much of what you are going through. I was a hypochondriac and had a big problem with typing all of my "symptoms" in search engines and the like. In regards to symptoms or concerns you have about possible conditions, it always made me feel better to talk about these genuine concerns with your GP or psychologist and possibly having tests done to rule out conditions which is really important for peace of mind.
It is really hard to speak to a stranger and this is a daunting experience but doing so will make you feel so so so much better. Small steps, remember that! Always remember that your health professionals are there to assist you and want to improve your condition.
It is extremely encouraging that you are actively seeking treatment and your desire to improve your condition and get better is absolutely apparent. Things will get better and the road ahead will have a few bumps, but, prolonged and sustained periods of therapy sessions in combination with regular checkups with your GP is the way to go. I would also discuss with your GP whether medication is suitable to your situation. In most cases prolonged periods of therapy in combination with medication often yields the most success.
Look forward to hearing how you go this afternoon. Remember, you are seeing a new doctor today and they might seem like a "stranger" but believe me when I say that they want the best for you and try and express yourself and your feelings as much as your comfortable doing so.
All the best,