Hi.
Diarrhea, gases and bright red
blood in stool indicate colitis which would have caused dizzy spells. This can occur recurrently.
Hence I would advise you the following:
Consult your Doctor for clinical evaluation and examination, per-rectal
examination and ano-proctoscopy to find out if there are hemorrhoids or proctitis.
Colonoscopy at an appropriate time is also indicated once the problem is bit solved for healing to occur to reduce the complications of colonoscopy tube.
Tests of stool and blood will help.
A course of an appropriate antibiotic,
metronidazole and probiotics would surely help.
IF hemorrhoid are present of grade 3 or 4 then you need a surgery too.
Take plenty of oral fluids and electrolyte solution to counter
dehydration and
electrolyte imbalance that might have caused dizziness.
Correction of any deviations in the blood tests would help further.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. T Chandrakant,
General Surgeon