<s>[INST] I am 18 years old, 5"9 and weigh 9 stone. The past few months i have been experiencing bad headaches and randumly feeling dizzy throughout the day. I also get really hot and feel as though my heart is beatin out my chest and every now and then get sharp shooting pains in my chest. I was on antidepressants for my depression but came off them about 2 months ago because i thought they may have been the cause of this but it hasnt went away. I still struggle to sleep at night, sometimes dont sleep at all yet i constantly feel tired and really weak at times aswell. No one seems to have any real answers. Could you help me please? [/INST] please do a TSH and ecg and then let me know the results. it can be a thyroid problem . if there is any cardiac problem it will be known once ecg is done </s>