Hello
welcome to health care magic, I really appreciate your concern.
Foul smelling flatulance and stool might be related intestinal infection,
constipation,
indigestion or high protein diet.
Bloating again could be related to Aerophagia ( swallowing of air), smoking, use of carbonated or caffeinated drinks,
acid reflux or
acid peptic disease.
Dizziness is a worrisome factor here, which warrnats detailed evaluation like recording of blood pressure, blood sugar testing or checking for any ear disease, so in my opinion if if persists that you need to see your family physician for checking of blood pressure and detailed evaluation to diagnose underlying cause for dizziness.
Looking at your description I would advise you to take a course of antibiotics like ofloxacin or ornidazole group of drugs under medical supervision.
I would also advise you to take antiacidity medicines like
pantoprazole with antacids for time being.
Avoid spicy and junk food, use of carbonated or caffeinated beverages
No smoking or alcohol consumption .
you can take diclofenac for low backache
Hope I could answer your question, please feel free to ask for follow up question, I will be happy to help you.
Best wishes