so i've felt fine all day, ate breakfast and went out and was really hungry for my dinner when i got home, so i made some food. about 10 minutes after eating it i suddenly had really bad d* and extreme nausea which i've had for about an hour now. i've taken some loperamide for the d* but i still feel terrible. i'm shaking loads and so so tired and i keep on having d* (had it about 4 times in the last hour) what could this be? i have been diagnosed with ibs so i guess it could be that, but it hasn't been a problem for ages some advice or support would be nice