No relationship after loosing virginity since graduation of high school.

I was wondering what I should do now to get over my girl friend when I was 20 I am now 30. The issue was I had lost my virginity and went into a coma for 14 months. Ended up in a children’s hospital trying to explain that I was adult since then I have had no relationship what so ever. My family doesn’t know about it either cause I think my sister or her friend had some dude take my place. SO they don’t know its hard to prove my sister hates me and I am confident this is the reason cause now her friend is not longer me or something like that. She would disprove anything I say and counter it so to talk about it is impossible. I haven’t gotten over the fear of going into another coma. One more thing my sister has gone as far as to say I have had no relationship in my life what so ever. Although I have admit I kept my girlfriend a secret in high school. Obviously me and her never got together after I got back. I don’t know if I got her pregnant that night either no condoms.