Food Poisoning Signs & Symptoms:
Food Poisoning Symptoms mostly depend on the type of contaminant and how much amount of these contaminated food eaten. These symptoms can be seen rapidly, within 30 minutes, or slowly, worsening over days to weeks.

Most of the common Signs include:

Abdominal cramps
Headache
Diarrhea (may be bloody)
Weakness
Nausea and vomiting
Fever and chills
With these common symptoms, specific bacteria may cause these signs and symptoms:

Clostridium botulinum (C. botulinum, or botulism):

Weakness
Blurred vision
Sensitivity to light
Double vision
Paralyzed eye nerves
Difficulty speaking and swallowing
Paralysis that spreads downward
Respiratory failure
Death
Salmonella spp., Shigella spp., and Campylobacter jejuni (C. jejuni):

Fever
Chills
Bloody diarrhea

Mushroom poisoning:

It can affect the neurological system (brain), the liver or the gastrointestinal tract. It may also cause death if it is not treated right away.

Stomach upset
Delirium (confusion)
Vision difficulties
Heart muscle problems
Kidney failure
Death of liver tissue.
Fish poisoning:

Specific types of fish poisoning can cause different signs and symptoms, for example:

Ciguatera: It is caused by toxins that present in some fish, including grouper, snapper, mackerel, and barracuda.
Numbness or tingling around the mouth
Feeling of loose teeth
Impaired touch sensation of hot as cold and cold as hot
Itching, muscle and joint pain
Slow heart rate
Low blood pressure.
Pufferfish poisoning:
Trouble coordinating movement
Difficulty swallowing
Numbness or tingling around the mouth
Excess saliva
Twitching
Loss of ability to talk
Convulsions
Paralysis that spreads upward
Respiratory failure
Death
Shellfish poisoning: It is caused by toxins in algae that are eaten by shellfish.
Trouble in swallowing
Difficulty speaking