I believe my co-renter has recently started poisoning/ drugging some of my food.       After eating a few things such as my salad dressing which I didn’t have any reaction to just after buying it, now makes my heart pound my left arm pulse with my heart beat, weird feeling in my stomach, hard to concentrate and ends with pains, ringing and a headache.       It starts about 20min. after eating and goes away in about 2 hours.       I thought it was all in my head so I tried the s