Atrial fibrillation and psvt as well as blood sugar problems are possible diagnosis' for me but i am only 22 and am very active and healthy? how?

Depends: What risk factors do you have. Do you have endocrine problems? Do you have diabetes, thyroid problems? All these must be checked.

Need cardiac monitor: From your question, i assume you're having palpitations that have not yet been documented or diagnosed. You should have a 24-hour holter monitor, and possibly a long-term event monitor to see if it is a cardiac arrhythmia, and if so, what kind.