Hi canagirl, I am currently going threw some of the exact same things as you and it is very difficult and terrifying. What i have learned going threw this is if you love someone that is all that matters and love should not be rushed. It should be patient and kind. Only time can tell. Thinking about the " what if's" all the time will ruin you and make you sick. Just take it day by day step by step . Overthinking and having automatic thoughts could lead to OCD . I have read lots about it and seems you are suffering from something similar to me . You are not alone in this ! Sometimes space and time to yourself is good to think and see how you really feel. But space can help and do alot for your relationship for both you and him. But you dont always need to break up as soon as you have these thoughts !There is many other ways of handling problems in a relationship ! Your scared and nervous so you panic . Dont let it get the best of you . When this happens try to relax its important you relax and calm yourself so you can think clear.Also it may help if you start being around friends/family/ go out / might give you different perspective and help a lot ! Maybe not seeing each other in person for a couple days or a week could help you guys ? For me I honestly think it helps a lot I have been threw it and it does help! Me and my bf do it sometimes and its a lot better . We stay in touch or talk on the phone then start to see each other in person again after couple days or a week. Sometimes men and women need space rather being single or taken. Time for yourself is always good also . Everyone needs their own time for them to once in a while. This could help save your relationship. Looking up things will not maybe try to force yourself to stop reading things that could be affecting your situation also. Try not thinking always and just do. Don't think just do what you feel. Follow your heart.If none of this helps maybe go see your doctor . Sorry for your hard time in your relationship I hope it gets better and I wish you the best of luck!!! If.you need to talk I am always here ! You can message me if you need ! Don't be shy!