Teething

Lindy
So my question is does teething cause constipation? 
My boy has 4 teeth coming out at the top ( he already has two at the bottom) 
Lately he has been waking up 4 times at night crying and sounds like he is trying to push. We recently started new foods as well, so I'm not sure if it's the new foods or the teething. Any advice on this would be helpful please. 
Thank you xx