What Causes Muscle Spasms In The Bottom Of The Rib Cage?
as explained in details.
Detailed Answer:
Hi.
Thanks for your query and an elucidate self-explanatory history.
Noted the history well in details at both the places.
The cause of such pains in the bottom of rib cage like pops out and could not move till it got relaxed is usually costochondritis along with inflammation of the nearby muscles.
Stress is the most important factors in causing this and you have a history of it just before the incidence. Probably not at all related to being skinny.
It is not dangerous if the EKG and X-ray chest along with clinical evaluation rules out any heart or lung related problems.
Take care to avoid the instigating or enhancing factors causing such episodes in future.
If there is no pain at the moment, no need of any medications as such.
I hope, this answers your query, please feel free to ask for further relevant queries if you feel that there is a gap of communication.
Kind regards