Feeling much better today, only slight nausea so far so no dashing to the toilets at the convention centre (day is not over yet though!). In relation to the flu jab I would have to say that some protection is better than none. I'm a big believer in vaccines (I'm a scientist), and I got all recommended jabs during last pregnancy & intend to get them all again in this pregnancy. The flu vaccine is developed against the known strains that are out at time of production but as you say the strains mutate so fast that your never going to get complete protection, but I feel for me that I would prefer to get what little protection is on offer. I only ever had the flu once & I hope to never have it again as I literally could not get out of bed for over a week, would definately not like to have it while pregnant!