If you have plateaud at 145 ibs your diet will need changing simple as that, if its to hard for you to eat so much food theres only 1 option= drink it, grind up oats and use them as your carb source drop the weightgainers, the main ingredient in weightgainers is dextrose because its cheap, it will spike insulin which makes you store fat and will digest too fast for someone with your metabolism, that 5 ibs you lose when you stop weightgainer is water and fat, im ecto aswell, carbs are the main obstacle for you. i wouldnt be where i am without my oat grinder