For the past few weeks i've had pain in my stomach (well, I think it's my stomach). It's on my left side. Sometimes it happens within an hour of eating and other times it just happens. I also seem to have really loud, rumbling sounds coming from my abdomen as well, although these don't cause any pain or discomfort. It's just a really strange sensation. I've also had some pain in my chest, again at the left hand side. This can be after eating, but also just randomly. Its a short, sharp pain that takes my breathe away, but only lasts for 3-4 seconds then it's gone. Could this be anything to do with stomach acid and PA?
I know PA can affect the stomach, but i'm not sure in what way or if this could be causing these symptoms.
I've also been spitting up blood, sometimes in the morning or at night after brushing my teeth. I'm not coughing anything up and its not coming from my chest. My gums aren't bleeding and i've been checking this carefully. But blood seems to be coming from my throat, when i'm rinsing my mouth.
Any advise would be appreciated. Are these common symptoms of low b12/PA?