Thank you Cpt B
Op tells us he forgot his previous medical and I was commenting on that. You are clearly far more suspicious and believe there is some more sinister explanation. I totally agree lying is quite different and a serious matter. However, as a medical person i tend to accept what patients tell me and take it at face value. I find most, if not all patients and pilots are reasonably honest. You are also assuming the person who performed the medical failed to detect some pathology OP hadnt mentioned.....