I have been receiving injections every 3 months or so for last 3 years.When diagnosed ( by myself when I told doctors to test me for PA).. Had very low B12. No problems with injections until 3 months ago.Went to doctors, had injection ,and got in car for 30 minute drive to work. 20 minutes later huge need to go to bathroom, just made it to work, bowels emptied with force and face went very bright red. Called 111 and they told me to go to local hospital. By the time I got seen had settled down but was advised to speak to surgery and advise them. I did this and was called back by a doctor at surgery who basically said it had nothing to do with jab. Went today for latest jab. Sat in doctors for 10 minute after and then left to go home. 10 minutes later guts erupted and felt very very bad, with some reddening of face. Went for a bath and went to bed got couple of hours...at 4pm. Now fell like I have been hit by a bus, heartburn and dodgy guts. Just been for wee before bed and is rather dark and fragrant. Anyone else get this or any idea why after 3 years this is happening? No point speaking to doctors as they will say same again. Now feel like I do not want to have this jab ever again...are there alternatives? Thanks in advance.