The side effects of eating or consuming too much nutmeg in too short of time are nausea, dry mouth, dizziness, irregular heartbeat, agitation and hallucinations.
If you're noticing any of those symptoms after eating too much nutmeg then you should see a doctor about it but most times the symptoms will go away on their own and you should be feeling better.
Nutmeg is very healthy when eaten or consumed in moderation however if you consume too much nutmeg it can be potentially fatal in some cases.
Before you get the symptoms of too much nutmeg you usually have to consume nutmeg in doses of 120 mg or more per day.
As long as you keep the dosage of nutmeg under 120 mg per day you should not experience any of those symptoms but everyone is different and sometimes a lesser dose may cause problems.