I had Hep A injection last evening and i went out for some drinks later .Headach!

I had Hep A injection last evening and i went out for some drinks later .Headache today is it a side effect?

I have felt rough today and tired only had a few beers nothing heavy.But i have had the mother of a hangover today.I wondered if it is the Hep A injection.

Headache is one possible side effect of the Hep vaccine. I have had the first two shots of three of Twinrix against hep A and B and I did not have any side effects.
Here is what I picked up on the Web, and according to this the side effects would not begin as soon as you report. Call your doc.

"What side effects have been reported with this vaccine?
The most common side effect is a sore arm, which happens to one out of two adults and one out of five children. Less common side effects include headache, loss of appetite, low-grade fever, or tiredness. When these problems happen, they usually start 3-5 days after vaccination and usually last for one or two days. A very rare but serious side effect is a generalized allergic reaction. If this happened, it typically occurs within a few minutes to a few hours following the injection."