SOS, solid foods help!

Jazmin🇦🇺♉

My LO is just over 5mos old and has been on solids for a little over a month now (absolutely loves food) however I'm faced with the predicament that he becomes quite constipated & have had to reach for a suppository more than I would have liked too. I've tried giving him water, prune juice pear juice ect however he will not take any liquid via. Bottle or any type of sippy cup he just chews on the nipple/straw bit and chokes and coughs any time he has liquids 😣. Just looking for some advice

Poop face 😁