My girlfriend and I had sex at the beginning of september. At the end of the month she had her full period. Now she was diagnosed with high anxiety, from all the stomach pain she was having and chest pains. But 2 days ago she said she bled from vagina once, and it didn't happen again. Is it something more? Or am I just paranoid? Also, she has her period between the 19th, and the 30th of the month. And she bled on the 12 or 13. And we didn't have sex after her period!!! Please help me!!!