Anxiety hell

Does anyone get severe anxiety and Suddenly experience symptoms that are so real. It’s so scary and sends me into a spin.
I am so exhausted. I will be seeing a psychologist soon but in the mean time, the symptoms are scary and Real. My Dr said it’s because I am in an anxious state and can feel a variety of different sensations in my body. I had strange sensations prior to going to the Drs but when I came out for around an hour or 2 they disappeared. I am mentally exhausted. they are now starting to come back.The symptoms feel so real. I have always had medical anxiety and I don’t know what else to do. I distract myself but it’s hard to not run with the terrible scary thoughts. I have pain which is real that I have medication for. It’s just getting to the bottom of it. Has anyone experienced that they thought they had a medical condition and all the symptoms came up. It’s a nightmare and hard to shake.
I know I have to tackle some things head on but my anxiety is so bad it prevents me. It’s terrifying. I am waiting for a psychologist, so I can tackle the rest head on with professional help.