Hi.
Thanks for your query.
Noted the history and understood your concerns.
You have the problems of chest and stomach pains for 3 weeks; racing heart, hot flashes, twitching of body, legs, arms and chest, stomach; loss of appetite and weight.
Since
ULtrasonography, EKG are fine and must have been by the Doctor at ER, this can be taken as
anxiety.
Anxiety is said to be there if all the relevant investigations are normal.
Hence I would advise you to take a
second opinion of your another Doctor, clinical evaluation, examination and relevant investigations to get a proper diagnosis and proper management even if all the investigations are normal for anxiety and symptomatic treatment.
Try to relax, meditate, avoid the factors which increase your symptoms.
Take rest, be away for the factors that are causing you the symptoms.