Had another of these breathing attacks, lasting 4 days. It's just now settling down. Had it gotten any worse, I would have gone to the ER. I did too much making Thanksgiving for the Family and entertaining out of town family. Thought it was my lungs - but bf reminded me I wasn't wheezing or gasping.
I am thinking now it was spasms in the intercostals. Making breathing painful. also had trigger points like crazy under shoulder blade and at sides - about midway down the ribcage.
Next checkup, I'll ask for a lung x-ray and heart followup, just to rule out scary stuff.
And am advising Family "I ain't doin' this no more!".

Anne