I don't know if this has anything to do with anxiety. It all started a month ago I went to my friends house to eat supper. that night I started feeling bad and I vomited all of my supper. After that, I was feeling bad for two days, had diharea and then everything came back to normal. When that happened, I was really stressed out about what it could possibly be. Now, some days I feel good, some days I feel bad. My symptoms are fatigue, some kind of nausea feeling but no vomiting, stomach is growling from time to time,sometimes I get headaches and feel dizzy or lightheaded. Usually I feel weird an hour or two after eating and this lasts for maybe an hour or two, then I feel normal again. I saw lately that when I go to the washroom, I sometimes have white stringlike things in my stools. I looked up on the internet what it might be and it all pointed out to be a parasitic infection. This could be it since the day befor yesterday, my neck has swollen up which could mean that my body is fighting off an infection of some sort and now the swelling has gone down. I am so stressed out on what this could be and I am scared to go see the doctor. My sinuses have been congested also for the past week or so. My ''Icky'' feeling like I call it is on and off. I dont have a hard time sleeping at night. But I really feel like it is something wrong with my digestive system. If I have a parasitic infection, how long can it last for? I also have to mention that 3 months ago I broke up with my girlfriend and this really wore me down. I was always stressed out and it was making me anxious (EXTREMELY) . Could I be sick due to anxiety? What about my stomach growling? If someone can help me with this, it would make me feel a lot better. Thank you.