I actually caught swine flu in July, after my post to this thread. I was very high risk for complications, due to permanent chemo drugs and steroids suppressing my immune system. So I took the offered Tamiflu - I'd have passed on it if I'd been healthy. The flu symptoms were most severe for a week, knocked me out for a month in total, and I was coughing (worst cough I've ever had) for 8 weeks total. I think I got off lightly.
Having said that, I wasn't swabbed or anything, so we can't be 100% sure I had swine flu. So I was still eligible for the swine flu vaccine (and annual flu one), though I can't have flu vaccines any more because a flu vaccine triggered my life-threatening auto-immune disease in the past. But hubby had the vaccines, as my household contact, to protect me, from any form of flu.