I've read about neurological symptoms and the loading doses to bring them under control, but what kind of symptom is a swollen tongue? Mines been swollen for over 12 months. I had one injection a week for 4 weeks originally, but the tongue never went down and I eventually managed to get one injection a month after that because I am on a vegan diet and have malabsorption issues. Tongue remains swollen though. I am starting self-injections and have had 2 over the last 3 days.