Thanks for providing more information.
As such Leaky gut syndrome is still about half theoretical but more an more research indicates that improper gut function is a problem.
And investigations like Colonoscopy,Stool routine examination should be done to rule out other possible causes like Irritable Bowel syndrome, Colitis.
The line of treatment for Leaky Gut Syndrome is-
You should take acidophilus supplements or eat yogurt three times a day.
You should also eat slowly and have small meals to promote proper digestion.
You should eliminate fast food, junk food and caffeine, alcohol from your diet.
Also Aloe Vera juice will aid digestion and should be incorporated into your daily diet.
You should also use olive oil or canola oil to cook with and take a fish oil capsule every day.
You should increase the amount of fiber you eat each day, such as vegetables, fruits and whole grains.Also split peas, lentils and other legumes are all great sources of fiber.
I-glutamine can be continued.
Start a probiotic and Metamucil.
You should avoid stress, deep breathing exercises will help in overcoming stress.
I suggest you to consult a gastroenterologist for further evaluation and management.
I hope this helps.
If you have any further query then feel free to ask.
Positive feedback and bonus are highly appreciated.