i blacked out yesterday, i was having a drink of juice and got a shooting pain in my neck and sudden dizziness i then blacked out for a few seconds, when i woke up i had a tingling feeling in my tongue and couldnt hear properly it was asif i was under water, i was also very confused, i also blacked out about 2 months ago, i was coughing and felt dizzy and the room was spinning then i blacked out for a few seconds, does anyone know what this could mean? Thanks!