helicobacter pylori infection
"Day 1-2 
sweet metallic taste in the mouth after taking the drug
Day 3: 
Sweet metallic taste in the mouth
Some extra production of saliva
Feeling very tired and sleepy in the 2nd half of the day
Reduced appetite 
Day 4:
Feel great in the morning
Sweet metallic taste
Irritated tongue
Excessive production of saliva 
Mild headache
Weakness
Black stools multiple times a day and at night
Ringing in the ears
Reduced appetite 
Day 5:
Sweet metallic taste that doesn't go away
Tongue hurts
Mild headache
Feeling weak and sleepy
Black stools, many times
Ringing in the ears
No appetite 
Slight dizziness 
Blurred vision
Excessive production of saliva
Vomiting several times 15-30 min after the 3rd doze
Chills
Heart palpitations 
Cramp"