HI Well come to HCM Thank for asking a question Your concern being appreciated, right now all the given symptoms are not indicative of H. Pylori infection but it seems to be due to some functional factors neither it is due to the medicines taken for H Pylori infection (Antibiotics and anti-protozoa ) teeth chattering may have several reason but non of them proved It is just a hypothesis, like anxiety, panic attack, missing teeth, mental irritation in sleep, apnea and worm infestations, Once you have completed the course of antibiotic for H Pylori infection and continued Omeprazole so you can keep it taking for six weeks, try to come out of the stress, you can try Chlordiazepoxide three times in day it will reduce the anxiety. hope this information helps.