Sounds like anxiety and panic attacks. I am uncomfortable also when I travel alone. I know how you feel. When you get home, you may want to talk to a therapist. Have you always had this problem when traveling, or just recently? It could be something else going on with you.
Get help. It will get better!
Best of luck,
kevintool
im not for sure because im not a doctor but sounds like u could have anxiety. you said that it happens to u alot when u are away from home. its probably because u dont feel comfortable when ur far away from what youre usually around. im not saying dont travel. im just saying that you probably miss home. but it sounds like you could be having anxiety attacks. best of luck, god bless
firstly check your thyroid through a blood test this can be underactive or overactive and has the same symptoms as anxiety, but you also sound like you're suffering from anxiety, it seems to me that your are worried of being alone incase anything happens as you say you're worried about your heart, this may be pvcs when the heart has an extra beat then pauses as the heart refils with blood the beat is harder because the heart needs to pump extra amount, see you doc for a check up before to rule anything else out, then the doc will help with anxiety