"i thought i was going to die,i had shortness of breath , feeling sick[but could not vomit] and my head was killing with pain. this lasted for at least one hour."
This seems like a sympton to me. Before I got my bfp (pregnancy unfortunately ended in miscarriage at 3 months), I had
lots of symptoms. Lightheadedness was def one of them. As were: migraines, nausea, feeling tired, upset stomach (felt like af was coming), rumbling stomach, heightened sense of smell, and a canker sore (which i had never experienced before). All before my bfp.
Good luck hun. Keep us posted.
