Hi earlier on today I accidentally mixed harpic toilet cleaner and bleach in my toilet and whilst cleaning it the fumes were very strong and I struggled to breath for a bit. the fumes subsided and I carried on but have since then felt like I have a bad cold and hs brought on a dry cough and now this evening I can taste blood at the back of my mouth when I cough. will this exposure to the fumes have a long lasting damage/effect on my lungs?
Ideally speaking what you have got is a chemical pneumonitis. You should cover your nose and mouth while doing it the next time. I hope things should subside on its own if it was just a transient exposure however if cough and difficulty in breathing continues, It's better to see a doctor