I am a 45 year old female with a history of IBS (diagnosed in early 20's). Up until recently (May to be exact) I have not had many stomach issues. Lately I seem to have gas, excessive belching, stomach cramps and very long gurgling that keeps me up several nights a week. I see a functional medicine doctor and just found out last week that I have an incredibly low ferritin level. Ferritin is iron stores in the body. My ferritin level is only 9 and it should be 40 or more from my understanding. I have been told the low ferritin can cause digestive issues and those should resolve once my iron stores are built back up. The rest of my blood work was great. Has anyone else experienced these issues on a regular basis and if so, what was the reason and how did you resolve the problem? I have no idea if these symptoms I have a truly a ferritin deficiency or if there is something else going on.