Hi! And yay for posting and BW!
Welcome!
TBH, I don't think it's true separation anxiety (that normally hit after 1yr). But, that's not to say that she's not wanting time with you.
At this age, their attention spans are fairly short. I remember DS getting fussy after a few minutes and hated tummy time as well
I did play with him a lot at this point, or sat close by and read a book/did the crossword while he was happy for a couple of minutes. Now, however, he plays for long periods of time by himself (up to 10-15, sometimes 20/30 minutes!!). So, hang in there, it will get better
What kind of toys/activities is she playing with/doing?
It could be the routine change, that she's feeling that things are different and seeks your comfort more. Only time will tell.
*hugs* Let's see what ideas we can come up with and if any other moms have some ideas, too.