Hi I am not sure exactly what happened. but today I was eating dinner, I had vegetable lasgna, pb and j, a piece of pineapple upside down cake and some milk. I am 21 and I weight 110 lbs, I have had a very rough and stressful day. i was sittin at the table and my boyfriend made me a drink of vodka with pink lemonade and a splash of tonic water. when I took a sip I got an feeling of incredible pressure over my heart, shooting pain in my left arm, I could not take in air, my heart rate increased, and then it stopped but my arm is still a little tingly and it felt cold for a while. not on the outside but cold on the inside. If you could please respond asap that would be very helpful. I have been diagnosed with cervical cancer, at risk to kidney failure because of sever sugar intake, and weakend muscles around the heart. I have also been diagnosed with adhd, and currently taking 20mg adderall once in the morning and 3mg yaz birth control each night. please help. thanks