Can anxiety make you only have physical symptoms? the doctors cant figure out whats wrong with me. ive had dizziness, nausea, swollen pale tongue, migraines, heart palpitations, lump in throat, diarrhea since may of this year?

Yes: It is not feasible to provide a meaningful opinion without taking additional history, physical examination and may be some tests. It would be prudent to see your doctor and discuss if you may be depressed. Counter-intuitive as it may seem, exercise may help. Start with low intensity exercise such as walking and gradually increase the intensity as tolerated. Wish you good health!