Hi.. Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concerns.. As per your complain it seems that there is heat injury to the mucosa of the throat due to burning with hot Lasagna and pain while swallowing is due to inflammation and swelling.. On the other hand nasal bleeding can be due to injury to any small blood vessel that can be caused by trauma and it may or may not be related to burning of throat.. It can also be due to stimulant addiction if you use snorting drugs.. In case if it was a single episode of the nasal bleeding you need not to worry about it.. For burnt throat you should drink plenty of cool water and cool milk. You can take anti inflammatory painkiller like Ibuprofen to reduce inflammation and pain.. You should take a soft diet and avoid spicy and hard foods.. In case if the symptoms does not improve in a week or condition worsen consult an Otolaryngologist and get evaluated.. The other part of your question is addiction to Stimulants and for this you should consult an Addiction medicine specialist and get evaluated and he can examine you clinically and can instill different methods of breaking addiction like tapering the doses of drugs, Cognitive therapy and Contingency management.. Above all a strong will power to break the bonds of addiction is must.. Hope this information helps.. Thanks and regards. Dr.Honey Nandwani Arora.