It is the end of February when Dana Ottmann learns that she should be vaccinated.

The 32-year-old is early, the vaccination with AstraZeneca has only just begun.

Ottmann's turn comes so quickly because she works as a psychologist in a rehabilitation clinic in Löhne, Westphalia.

On February 25th, Dana Ottmann received her vaccination.

The next morning, her mother Petra remembers, Dana had a very bad headache.

Actually, that's not unusual, says the mother.

Because Dana has had migraines since she was a child.

She is therefore being treated by a neurologist and regularly takes medication.

She reported this pre-existing condition at the vaccination center.

It was not an exclusion criterion.

But the headache is different this time.