Re: Breakfall injury?
Get ye to the doctor now. Do not train. Do not pass GO. Do not collect $200.
You may have a hernia. You have torn an ab muscle. You may have pulled some facia.
Get it checked out as soon as possible. My experience ( and I have some) suggests most injuries do not just go away by themselves, self diagnosis is useless, and reinjury takes a lot longer to heal.
Thus endeth the serman.