In principal, glandular can be of helpful if properly used , and to many, it is helpful. I personally seldom use glandular, whether it be adrenal or pituitary, because I notice in many cases, after an initial "honeymoon" period if you are lucky to have one ( and this honeymoon period is rare in hypersensitive people) , you can become "hooked" on and if you stop, you can possibly get a rebound effect. Furthermore, there is a small but significant of people who develop a rejection reaction up front and or a paradoxical effect soon thereafter, and if you have advance adrenal fatigue, a reduction in clearing, leading to metabolites accumulating i the body and turn toxic on you.
Having said that, some people do well for a long time on it. so my above observation is not an universal finding. The key is to know that everyone is different. These are general statements on glandulars. So I do use glandular, but selectively, but not as first line. For first line, I choose nutrients, depends on the situation, that are more gentle and still get the job done, though may be a little slower. The good part it there is practically no down side and when a gland becomes stronger, I can get them off over time. So I usually plan the exit before I get in, becauase the ultimate plan is to get you well and off , not have you sustained on multiple nutrients chronically. My approach is to have a predetermined plan of action and a timeframe. Its not a trail and error exercise as far as I am concern.
Now, in your case, the pituitary nutrient you are taking is designed to stimulate the HPA axis, and that has some drawbacks because that part of the brain is very sensitive. on top of that, you need to be very careful of any pituitary products of any kind due to the risk of mad cow disease. many of the pituitary glandular comes from bovine source, and you need to make sure that those glandular has been assayed properly. but even then, it may take years to show up. I see risk. I am not sure whether there is a source issue in your case, but suffice to say that I dont miss not having pituitary glandular in my arsenal, as it does not pose any limitation to the battery of tools in my toolbox because there are so many other choices, generally speaking.
If you feel bad after taking it, then you should stop. I am glad that all your blood work is normal. Without more details, this is as far as I can go. There are many ways to fix your glands, if that is indeed what it is, and if you are not feeling well with the glandulars, you should not continue. By the way, your reaction to the glandulars is quite common. so its not sometime very unique . I see this all the time.
If you want to do glandular, and if you have a body that is constitutionally sensitive,always start with small testing dose first and gradually work your way up i s the best.
Hope this helps.