I've stopped taking birth control pills at the end of my last cycle. I was due to get my period again a week ago. I have no symsptoms of pms that i normally do and my period seems no where in sight. I am not worried I am pregnant my husband and I used condoms this last month. I have been experiencing extreme hot flashes, haeadache and severe heart palpitations. These attacks happen all throughout the day and night. When it comes on I feel as if my heart will burst through my chest and the heat rises up my body quickly and sweat just pours off me. I wake up most mornings with a splitting headache. My sister seems to think I'm experiencing anxiety attacks I'm not anxious everytime this happens and I'm sometimes asleep!! What is going on!? When should I expect my period to come? OH YEAH how could I forget!! I've gained almost 5 pounds in the last month also!! Help!