<s>[INST] Hi im a 30year old Female height 1.56 and weight 86.3kg i have a pain in my chest and my right arm from where my neck and shoulder join right down to my wrist . It also feels at times that my heart beat is slowing down.The pain in my chest is not very severe but my right arm is very painfull espescially in my neck.What could be the problem with me. My doctor says it could be stress related but at the moment now i can t really think of anything that could be stressing me out. I don t have any stress that i know of. Please advise. [/INST] Hi there, thanks for asking. As you mention it is a serious issue. It is good that you are checked for thyroid function. Hypothyroidism can bring increased weight, and also slow heart beats. It could be also related to sleep apnea, because it is common in obese people (your BMI is 35.45) and it also could lead to slow heart beats. Other symptoms of thyroid hypofunction are change in your hair and skin texture and also constipation and loss of concentration and may be low mood. Other symptoms of sleep apnea are fatigue during the day and also being sleepy all the time, probably lower mood than normal. If you have allergy, deviated septum, enlarged tonsils, TMJ problem, or you go frequently to washroom in the night, or you have headache in the morning, this could be more likely. It is good that your basic electrolytes and also magnesium and calcium be checked. I wish the best health for you. </s>