Severe bloating after each meal, severe constipation, nausea, generalised stomach pain. all of this has been getting worse over 6 mths.??? only 20 y/o

Constipation: You really need to change diet, avoid meat and white flour , eat more vegetables , fruits with fibers, drink plenty of water, prunes etc. Take Otc laxative and / or natural fiber and regularize your bowel movements. Continue treatment until you feel better which may take months and keep maintaining. Take professional advice if still not better .