My 17 wk old had her immunisations yesterday. She was in quite a bit of pain and her legs went red so I gave her abit of calpol. She got grumpy when I tried to give her her midnight feed and then for the first time ever I had to wake her up this morning at 7.30(she usually wakes at 6). She went down for her morning nap at 9. She usually sleeps for half and hour but is still asleep now(10 45). I even tried to wake her for a feed. She opened her eys and then went striaght back to sleep. Should I fully wake her for a feed? Is this sleepiness normal? She wasn't this way for her 12 weeks jabs??