Yeah... When my wife was in the hospital, I was stressed beyond the limit. I'm not a sufferer but I had several stress related symptoms: Insomnia, twitches, muscle tightness, loss of appetite and a few more. I didn't have a fast heart rate but as anyone would be doing in my circumstance, I was constantly worried about my wife. I nearly lost her.
I called my doctor and asked for a "chill pill". The Xanax really helped. Just be really careful and only use them when you really need it as steady use can lead to addiction. During that time the most I took one was twice a week.
I really think getting real life help or if you have the ambition and drive, self help with the
FREE CBT course offered here would be the direction to head. Just pointing you in the right direction here... Hopefully you'll follow the path.
Positive thoughts