iStock.com/egal. This is the second article in a series on heartburn and GERD. If you havenât read the first one, Iâd suggest doing that first. The idea that heartburn is caused by too much stomach acid is still popular in the media and the public. But as Daniel pointed out in the comments section of the last post, anyone familiar with the scientific literature could tell you that heartburn and GERD are not considered to be diseases of excess stomach acid.
Symptoms and signs of acute porphyrias involve the nervous system, abdomen, or both (neurovisceral). Attacks develop over hours or days and can last up to several weeks. Most gene carriers experience no, or only a few, attacks during their lifetime. Others experience recurrent symptoms.
Anaphylaxis symptoms occur suddenly and can progress quickly. The early symptoms may be mild, such as a runny nose, a skin rash or a strange feeling.. These symptoms can quickly lead to more serious problems, including: 1  Trouble breathing. 2  Hives or swelling. 3  Tightness of the throat.