Im sorry that sucks. I would say its normal. I also want to say Im sorry that you dad died. I would say that having such a shock of loosing your dad has made you afraid that it could happen again. So you want to be on gaurd and protect yourself and the ones you love. I think its going to take a long time for you to not feel that way. I think people will understand that. I wish that i could say poof its gone and your the same you were before your dad died, but its not going to happen. You are a differnt person with a new traumatic expereince and your trying to process it and at the same time trying to protect yourself from it happening again. I would say to be gentle with yourself and understanding of yourself and let the healing that will happen come in its own way. You could say things like I am afraid of something happening to ----- becasue of what happened with my dad, and I understand that. It was really horriable the sudden way my dad died and my body and mind are afraid it could happen again. Im ok. Im grieving and I will make it through this fear. Not sure if I am helping but I really wanted to give you an answer that I really thopught through. Hang in there ok???