iodine and glutathione as a potential endocrine disruptor—a role of oxidative stress | Endocrine Selenium, Iodine and Iron–Essential Trace

If none of these tests reveal underlying gut dysfunction and/or you have already healed your gut, thats when its important to look to gene testing

This comprehensive systematic review aimed to summarize current literature on GI and hepatic manifestations of amyloidosis, highlighting diagnostic and management strategies across the major subtypes of amyloidosis, in particular AL (immunoglobulin light chain), ATTR (transthyretin), and AA (serum amyloid A) amyloidosis

American Journal of Clinical Nutrition 62, 1424S1426S.CrossRefGoogle ScholarPubMed Blot, WJ, Li, JY, Taylor, PR, Guo, W, Dawsey, S, Wang, CQ, Yang, CS, Zheng, SF, Gail, M, Li, GY, Yu, Y, Lie, BQ, Tangrea, J, Sun, YH, Liu, F, Fraumenti, JF, Zhang, YH & Li, B (1993) Nutrition intervention trials in Linxian, China: supplementation with specific vitamin/mineral combinations, cancer incidence, and disease specific mortality in the general population

Benefits of the Lipo-B Skinny Shot: Burn Stored Fat Reduced Hunger Weight Loss Increased Energy Levels Preserve Muscle Absorption of Essential Minerals ONLY $20 Ready to Start Your Wellness Journey

I can trace my symptoms back over 40 years though as you say - they did rather snow ball in the last few years