I have had headaches and feel tired 9 days after Botox and Restylane. Is this related?

I had a top up of botox 9 days ago and restylene in my cheek and tear trough. It all looks ok and no bruising but I have headaches much of the day since the treatment and my head feels heavy and I feel listless and tired. Is this a reaction to botox or restylene or maybe I've just got a head cold but I have no other symptoms. Thanks