I'm an otherwise healthy 23yr old white female. I've been living in Brazil for the last 5 months. I felt mostly fine for the first 2 months. During the third month, I started having really painful stools - so much that I dreaded using the bathroom in general. Almost every stool felt like it ripped my anus open, and was almost always accompanied by blood - not IN the stool, but on the toilet paper afterward. Out of nowhere, that cleared up after about 6 weeks of hell. I was fine for the next month and a half (I was staying in the biggest and most developed city in the country, FYI).
A little over a month ago, I came to the Northeast region, which is much more rural and undeveloped than the South. I had been feeling a little uncomfortable in my abdominal region for the week prior to leaving, but attributed it to bad PMS. My first night here, I went to a seafood restaurant. I've never had issues with seafood before, but for reference, I had octopus, lobster, and a kind of white ocean fish specific to this area. The next day, I felt horrible bloating and nearly debilitating abdominal cramps all afternoon. I vomited right before dinner, didn't eat anything, and vomited 2-3 more times before I slept. The next day, my body traded the vomiting for explosive diarrhea, 5-6 times a day for the next 3-4 days. I'm a chef, so the first thing I did was treat myself for any type of food-born illness - I ate only plain foods for the next 2 days, drank only bottled water (I had been doing this since I arrived), et cetera. The abdominal cramps continued, and so did the diarrhea. It's been a full 5 weeks now. Every morning, about a half hour after I wake up, I get abdominal cramps, then maybe 15 minutes later I have diarrhea. This happens again in the late afternoon. It's not painful or anything (the cramps are - the diarrhea isn't), but it's really annoying.
I finally broke down and told my partner what was going on yesterday, since I needed him to translate to the pharmacist. They gave me two effervescent tablets (baking soda, sodium carbonate, acetosalic acid, and citric acid compound) and a medicine called Kaosec (loperamida chloride? my translation may not be correct). I took one of the effervescent tablets right away along with one of the other pills, and then the other effervescent this morning.
This afternoon, I passed a very concerning stool. For lack of a better description, it looked like a cluster of white ramen noodles. It was sticky and had a mild odor. It was attached to a light yellow mucusy thread that had a thin, brown line running through it (it looked like the digestive tract of a shrimp when you de-vein them).
Is this the medicine, do I have a parasite, or is it indicative of some kind of bowel disorder? Any tips are much appreciated.