Talk to Internal Medicine on Periods Stopped

I had terrible tooth ache (wisdom tooth swelling) went to a doctor and he prescribed me the following medicine (I just started my period as well few minutes ago) Bacticlor 500 mg, Inflamatix 100mg, Serra-BD 15 MG After 20 30 or more minutes of taking them, I started feeling suffocation, extreme gas, heavy chest and couldn't beeath properly. I couldn't sit or lie due to suffocation abd heaviness, my stomach also felt upset and i felt alot of pressure onmy chest, heart and diaphragm region. I walked for 2 hours, drank orange juice, had phakki with warm water to ease the feeling of suffocation and gas. I felt little better and slept finally. Woke up around 7 am feeling exactly same but with bloated abdomen and really bad backache and my period stopped. I have a very good cycle, always having period 3 4 days early and medium heavy flow the next day. But till now, i barely have any and there was clotting as well. Please tell me what should i do i am distressed and feeling anxious.