Pressure marks on forehead - lasting 4 hours plus - is this circulation issues?

I went to my physio appt. yesterday - 6:30 p.m. and she had me face down on the table - with a hole cut out for my face. I was in that position for about 10 minutes.

I got two long dents in my forehead (part way through, I shifted the position of my head)

I understand that happens with pressure...but now since lyme...it stays...for hours..

When I went to bed at 10:30 - they were still there...red indentations.

Is it circulation issues...or is it from loss of collagen?

and...I don't think it's just age, PeteZa - because early in lyme this didn't happen to me...only after lyme and/or co's progressed...