I am constantly feeling hungry even after eating. Rather i feel more hungry after eating. I am obese person. Also i am experiencing symptoms like shortness of breath, fatigue and pain in upper right side of abdomen. I have been diagnosed with elevated estradiol and being treated with tamoxifen 10mg. Also recently i have diagnosed with prediabetes. When i google the problem, i got to know that it is condition called "Insulin and Leptin resistance." Also i searched for other symptoms and i found that leptin resistance can cause congestive heart failure. Is it true? I am very much scared of it.