Diagnosed with lupus, medications making sick, tightness in chest, rapid heart rate, high BP. Reason?

hi. my problem is that for about a week and a half ive been feeling like something has been stuck in my throat off and on. i was outside playing with my 2 y/o daughter one afternoon. running up and down our snow covered hill. it was very cold prob about 20-25 degrees. i got so hot that i had to take off my coat, hat, and gloves wearing only jeans snow boots and a fleece sweatshirt. i take a lot of different medications, so i figured that might be what was making me so hot. my daughter got cold a little while after that so we went in. i couldnt get out of my clothes fast enough. even when wearing a tank top and panties, my body felt like it was on fire. the next day, when my daughter woke up, i couldnt wake up at all. my left arm was tingly and numb and i was totally petrified for some reason and very confused. i had to lock her in my bedroom with some toys and books while i slept. my grandma had gone to the hospital that morning with symtoms of a stroke. i live in a multi generation home. i help take care of my elderly grandparents so i was there with my daughter and my grandpa. i was finally able to wake up around 2:30. i attempted to sort clothes for laundry. but couldnt even complete that simple task. by 5:30 i realized that no one had eaten anything all day. i went and picked up fast food for everyone. still confused i went downstairs and just sat there while my daughter played and watched movies. my mom and grandma finally made it home right before my fiance. i layed down and fell asleep right away. the next morning i was still not feeling up to par, so i called my family dr. and got an appt for that afternoon. i told her what had happened and she did an exam checking my eyes and reflexes and such. she then started feeling my abdomen asking if there was any pain. she touched a few sensitive spots and i let her know when she did so. i just had a dnc for thickening of the endometrial lining. she then told me that she thought that i might have had a panic attack...i dont know why i would have though...anyway, she also said i might have some reflux and prescribed me ranitidine. i guess thats prescription zantac. anyway, i started taking it that night and the sensation of something in my throat seemed to subside. but for the past 2 days now, ive gotten it again and it wont go away. i woke up with severe eye pain this morning that just wouldnt go away. i took some of the xanax that she had prescribed and it seemed to go away. i was just at the grocery store tonight and started feeling very sick. like i was getting a chest cold. tightness and pain in the chest and that feeling of something in my throat again. i was in the area of the pharmacy getting some cough drops for my throat and decided to check my blood pressure. it was 143/93 with a pulse rate 114. im a little worried and confused about what is happening. i know this is a lot but i wanted to give details. PLEASE let me know what to do. im scared...thank you