Thanks for posting your query.
As you are having persistent constipation
, stomach pain and dehydration, if you are also having salty skin and frequent chest or upper respiratory tract
infection then these findings suggests Cystic Fibrosis
.It is a recessive genetic disorder
that can lead to serious complications or even put your life at risk.It may cause severe problems in the lungs, pancreas, liver, and intestine. It is an inherited disorder and affects cells that produce mucous, sweat, and digestive juices.
You should visit your doctor and get labs like Sweat Chloride Test,Chest X-Ray, CT scan and LFT.
Hope it helps.