Welcome to the community. And what you are feeling is very normal and typical for an empath. You are going through what I call empath burnout. We are emotional sponges absorbing the energies that we encounter each day. And when our sponge gets full, we start to malfunction. We get anxiety attacks, have trouble sleeping, and then other physical health issues start to manifest. When I am going through burnout I start having an increase in stomach discomfort and seem to catch about every germ that is going around (almost as if I have zero immunity). But when I go to a doctor during that time they test me and tell me my blood readings indicate that I am in perfect health. The empath burnout syndrome that starts causing physical problems is not something that modern medicine can explain. In my case I'm sick or in a lot of stomach pain and the doctors will tell me I check out just fine. I even had a stomach endoscopy scoping procedure years ago and they said nothing was wrong but yet I had constant daily stomach pain.
I have good news bad news for you. The bad news is that as an empath you are probably going to have some times each year where you get emotionally overwhelmed and experience this burn-out syndrome. The good news is that this is your body's way of telling you that you need to make some adjustments in your life. And the better news is that there are ways to heal yourself and squeeze out your empath sponge so that you can return to a more normal existence.
Since you have been an empath for almost a decade, can you let me know what you do to relax and for fun? And do you meditate or practice grounding out the energies that you take in? Let me know and then I can add some suggestions to help you feel better.