So I've noticed it off and on over the last few weeks, but my right side will get really cold.....like my arm and my leg. It is not just a sensation in my head....I had my husband touch my right leg last night and he did say it was cool. However, he also said my other leg was cool as well. The color is fine.....but I can literally feel the coldness on the inside. I have a pulse oximeter at my house and both feet got readings in the high 90's, so oxygenated blood is circulating. I'm worried that it's heart failure. I do have a history of hypertension.....I had an ECHO in March because of palpitations. The doc said it was 0.3 cm bigger than it should be, but that they arent worried and I am supposed to have a follow up soon. It could have just been bad images. I dont really have any other symptoms.....but wondering if this is the start of it. I'm 35.