I am a 17 year old male I was curious of anal masturbation so I gave it a shot just 9 hours ago and I felt this strange abnormal pain in my stomach region when I was done I used my wooden nunchuck I had and used lube and used about 4 inches since I didn't have a proper sex tool. When I stopped and cleaned up I felt it and it made me worried there was no bleeding just one dot of blood on a tissue even used the bathroom and there was no blood lingering. I am afraid I had damaged my rectum but I don't feel a lot of pain it is bare able but it is uncomfortable an I wish for help can move around properly and feel fine it's just the uncomfortable feeling worries me I don't want to go to my parents to take me to the doctor about this because I feel embarrassed about it please help.