Pains in 2nd trimester

Jessica
So today I've been having quite sharp pains and feeling quite sick. I'm 17 + 1 and my sickness stopped at around 13 weeks so surprised for it to start up again. My whole belly seems to be getting little pains like I need the toilet but nothing all day :( I live a fair while from hospital so don't want to go all the way up if it's just sickness, can sickness just start back up again after going for a few weeks?