I have a similar question, maybe a thread hijack, if it is, im sorry.
Been doing MT for 4-5 months now, never encoutered problems with full power kicks on the heavy bag, both legs. recently, me and my buddy were fooling around a bit and i threw a lead kick to his inner thigh. He shielded it, but my shin guard was low and i hit him about 5 inches below the shin guard. Needless to say, it hurt like a bitch, a bit of swallowing but nothing too serious.
Of course, me being a idiot, i had to get revenge. We removed the shin guards for conditionning, when that was done, i feeded him a thai kick, maybe 30% power. Of course, he shielded it. It hit him with the middle of my leg, facing straight 90 degree angle. Now that hurt a lot more, but i took it. Now, i woke up the morning and i passed my fingers over the sore spot, i tell, my bone caved in! I feel like there is only the muscle on the front of my leg then the bone caved in for maybe 1inch in lenght and 1/16 in depth, then then i can feel it.
How is that possible. It hurts a bit if i press at that spot, but nothing too serious. I didnt feel anything at that time, i even went for 25-30 kicks on the bag and i didnt feel anything at the time. SHould i go get x-rays or something?