I keep feeling that my girlfriend is cheating on me. How can I stop feeling like this?

Hello! I am sorry to hear that you feel this way! It is important to address this issue with your partner in order to clear your mind on the situation. You shouldn't feel constant worry and this is why you should bring the situation to light. Chances are, she is not aware you feel this way! By asking her and expressing your concerns, you can finally get an answer from your partner. It is also important to analyze as to why you are having these feelings of doubt in your relationship? Is there a specific reason/action that triggered you to feel this way?