Hey guys, I have been self injecting for a while now with no problems, I inject every two weeks. Last Thursday I injected in the morning as usual, no problems with the injection went in smoothly. But that night I woke up feeling very nauseous and Friday I had that horrible body sucking fatigue and just felt really "off" all day, this has happened before with some subliguals I was taking they made me feel really bad and gave me some symptoms similar to the actual deficiency symptoms. Might be worth mentioning this ampoule was the first out of a new box!! Oh and it's dated to 2018 Any ideas??