Dear Welcome to HCM We understand your concerns I went through your details. I suggest you not to worry much. I sincerely opine that the problem you are facing now is of your own creation. These are just obsessive negative thoughts. We all know, we cannot behave in the given way with our mother. You are having sexual urge even when you have nothing to do with your mother. The more you try to escape from the situation, the more obsessed you will be. Therefore, the best method is to ignore this. Promise your self that you will not fantcise with your mother and ignore the urges. Keep yourself busy. If you still need my help, please describe the whole problem in detail and post a direct question to me. I shall definitely help you with psychotherapy techniques to over come your problems. Hope this answers your query. Available for further clarifications. Good luck.