I woke up this morning feeling anxious I've have the WORST day of anxiety today. My arms been numbs and sore doctors said it's a muscle but my mind telling me it's something serious and I'm gonna die. Keep going got and cold. Burping loads, my chest and stomach keep hurting I feel so tired. Been like this all day. Went to get my hair cut earlier and just walked out because I was sure I was about to have a heart attack what can I do to snap out of this??