I feel your pain! I I had very little faith in doctors also, particularly rheumatologists, because my primary Sjogren’s and RA were over eight years in being diagnosed correctly – the first two doctors were dismissive because my joint pain, swelling joints, and even the pain in my chest when lying down and the difficulty breathing were “all in my head!“ That’s what led me to write you – please have your doctor(s) do an ECG for pericarditis if you have those symptoms again( DO tell your rheumatologist about it even IF the symptoms have subsided! That was my first presentation of Sjogren’s (and 2nd,3rd&4th!). One GP (before I finally got an appointment with a cardiologist) told me that pain when lying flat on your back or on your stomach and difficulty breathing or pain in your left shoulder when you breathe can be hallmark signs of pericarditis. However, rarely does any of the literature on Sjogren’s or autoimmune diseases mention anything about it! Also get a lung CT scan as Sjogrens can present there also…along with, as you probably know, every body part / system that has exocrine glands. Though the heart doesn’t specifically have exocrine glands, the systemic nature of Sjogrens can trigger a local inflammatory response, fluid buildup(pericardial, effusion), and friction in the heart.
Other commenters have given you questions to ask concerning your Hashimoto’s or plaque psoriasis, and as much I hate using AI, sometimes accessing that function on your cell phone or computer helps you know what else to ask your doctor! You can simply ask Google to make a list of questions concerning your particular tests and these autoimmune diseases.
My best wishes to you for a rapid and healthy outcome!