Why is Lindsay playing doubles?

I watched part of Lindsay's match - and at times she appeared to be limping.

She said in her press conf - that some days is harder than others - as it is a nerve issue - and she is suppose to limit time on her feet.

So with this said - is it wise for her to play doubles?

she doesnt want to back out on lisa. still she won eastbourne last week after playing bad singles...can't be too bad.