Welcome to MSF @Confused1991 - I am sorry you seem to be in a stressful relationship. My first impulse when you described your symptoms was broken heart syndrome. I know little about it except what others described to me and this website that describes similar symptoms. Broken heart syndrome - Symptoms and causes - Mayo Clinic

Hope that helps at least to understand the situation you are in. How to deal with a relationship like that may take the help of a therapist or a support group.

CANDC

[If you want me to see your reply to this post please include @CANDC in your message - not in requoting my message and not the first word of your message]