Ok so during my period and after my period Im still having pregnancy symptoms and usually my symptom would go away, I even got some new ones symptoms: My breast feel full, tender, and my veins are big. Nausea, headaches, and when I walk up the stairs my heart starts to beat fast and hard, and I get lite headed, which never happens to me. Im really tired and my smell is strong, and my back still hurts, and bloating. I know that something is wrong, but I didn't know what it is. Any advice?

UPDATE: I took a test but it came out negative . I still have all the same symptoms tho, don’t know what to do.😫😫😫