Hello and welcome to Healthcare Magic. Thanks for your query. You have mentioned that all relevant tests were normal, and a heart problem was ruled out. In such a case, and taking into consideration the acute stressors which you have been facing recently, it is very likely that your symptoms are due to an anxiety disorder. It is important to understand that anxiety can manifest with a variety of physical symptoms, including chest tightness / pain, palpitations, difficulty in breathing, etc. I would also like to let you know that certain anti-anxiety medication (like SSRIs) can casue an initial and treansient worsening of anxiety symptoms, before befoming fully effective in controlling the anxiety. So, I would advise you not to worry about this and continue the medication. Also, practicing relaxation techniques like deep breathing, yoga, etc. can also be of good help. Wish you all the best. Regards, Dr. Jonas Sundarakumar Consultant Psychiatrist