30 mins after eating any meal i experience the need to open my bowels. stools softer with lots of gas. diet change didn't help. feel tired any ideas?

Bowel habits: It is not uncommon to have what is known as a gastrocolic reflex after a meal. That is a normal physiologic response to a meal followed by the urge to defecate. If stool softeners are being used then that can worsen the problem. Typically an increase in fiber in the diet can help in mild cases. If this is persistent and occurs frequently, then you should see your doctor to discuss further.