I'm new to this site, so if this post goes in the wrong place, I'm sorry.
Now, my problems started in the August of 2016 when I was abroad with my family. I had diarrhea, and nothing could stop having it. After a week we arrived at home, I still had this problem for 2 weeks more. I had appetite (mostly), I just did not want to eat because I knew it'd go out in no time. I went to my GP told her this whole situation, and she prescripted some medication I took for a while. Shortly after the end of the third week, I started to have pale but ALMOST normal stools and it kept going on until my stools were normalized again. Since then, I had multiple other issues, some of them still present, some of them only sometimes, some of them are not. Until a week ago, my symptoms were stool in every morning as I woke up (I had only stool 3-4 days before this whole 'disease' e.g in 2013-2014-2015 and so on), pain in my upper middle abdomen which is more likely stabbing, pain in my lower right abdomen which feels like it has pressure on it, sometimes I also felt sick (like I had nausea), passing a lot of gas mostly in the morning before passing stool, and in the night, sometimes I had flat stool, sometimes I had pencil like stool, sometimes my stools which were totally OK had yellowish color, I have burning feel in my rectum (used medication for hemorrhoids, which made it a little better for like a week, but I have not been using it for a while), I also found a few times fissure near my anal cavity, fatigue (which I assume is because of my sleeping schedule, which is like waking up at 1 PM and sleeping at 2-3-4 AM, but on Sunday, I woke up to have horrible case of watery diarrhea which I had 12 times more that day, even water came out after drinking something. I took carbon pills which made me feel a little bit better and stopped having diarrhea. I also had no appetite and was in bed, because I felt so weak when I woke up from the bed. 2 days ago I started to feel a little bit better and started to eat a very little amount of food. Yesterday morning my poop was OK a little bit diarrhea like but most of its part were absolutely normal IIRC. This morning I had flat and short stools, which was followed by diarrhea AGAIN... it was not watery, but still diarrhea. I was thinking on it might be a virus by now (the diarrhea cases in this period) because my mom had virus, and his colleges had too, some of them had diarrhea (watery too if its true). I also had 37.2 C° temperature which is like almost nothing but still higher that it averagely is, not to mention my back pain... I assume it was because I was in bed for 3-4 days in a row without any move. I'm 19 years old and very much worried about this whole thing that has been going on for a while now.. I'm scared going to doctor, because everyone said colonoscopy hurts and feels very bad, and also, what if it turns out, I indeed have colon cancer? I do not want to live without intestine, I want to live a normal life and not being home in my whole life relying on some else.. I want to work, I want to have a family. Please, if someone is well-experienced, or had similar (maybe same) problems, reply to this topic, it'd help me a lot, thanks. Oh, and sorry for my English, my native language is not English.