Dear Welcome to HCM We understand your concerns I went through your details. I suggest you not to worry too much. The condition you are in could be termed as illusion or delusion in psychological language. Several people do have such problems of imagining problems and so many different happenings. Someone might think that someone is always watching him, others that they hear someone talking, someone sing etc, others cannot experience it. This is not necessarily from past experiences. They include current experiences also. therefore, instead worrying about the past, concentrate on present and future. Everyone has negative experiences in the past. They have come out of the negative thoughts of that incident. Not to worry always about it. You should try to divert your thoughts about the choking coin into more creative hobbies. You need psychotherapy and other cognitive behavioral therapies. I can help you through telephone if you desire so. Please do contact me through customer care of www.healthcaremagic.com for a telephonic consultation session. Hope you understand the situation. Available for further clarifications. Good luck.