Dear Welcome to HCM We understand your concerns I went through your details. I suggest you not to worry much. The basic condition of snake crossing and having panic attack is actually called fight or flight syndrome . you need to know it well and understand it. No problem. Such reflex actions happen with everyone and it takes some two or three weeks to have a complete cure. Read about fight or flight syndrome in the web and you shall understand more about it. If you require more of my help in this aspect, Please post a direct question to me in this website. Make sure that you include every minute details possible. I shall prescribe the needed psychotherapy techniques which should help you cure your condition further. Hope this answers your query. Available for further clarifications. Good luck.