Plumtrees--You are most welcome! This is a great place for advice and support.
So far I've had two cycles of IVF, the reason being that my husband is paraplegic and there is no way for us to conceive naturally. The first time it worked and I miscarried, the second time failed. The process is stressful, but if you arm yourself with information and advice from the lovely ladies here, you should be ok.
In my experience, the treatment itself is not necessarily painful. You'll have blood tests, and ultrasounds up the wazoo (literally!), and the hormones may make you emotional. The egg collection is uncomfortable at the most, as is the embryo transfer (full bladder, ick!)
Do your research before picking a clinic. If you're in a borough with a short wait time, make sure you put yourself on the NHS list. As long as neither you nor your partner has a child from a previous relationship, and you fit all other criteria, then you are entitled to at least one funded cycle of IVF.
All of the ladies on here are amazing and supportive, so once again you've come to the right place. I'm sure the others will chime in as well..