Congratulations misslawbore for posting this! It suggests that you are open to considering whether having the vaccine is in your best interests and that you want to weigh up the pros and cons so that you can make an informed decision.
Many people just accept the prevailing view unquestionably. This is probably because they trust those people in positions of power responsible for the vaccine rollout. But if there is one thing this Cov-19 issue has taught me it is that the governments around the world, the mainstream media and healthcare establishments have provided information that is designed to influence the public into conforming to a certain agenda.
Look at today's Lockdownsceptics.org newsletter for the latest examples of such misinformation and how it is being exposed by some very clever people who just want to bring some truth, objectivity and balance into the mix.
Please read my post of 4th February 'I wouldn't say I was anti-vax in stance......'. I aim to get people to look at the bigger picture and question things.
Unfortunately, looking at things in the round also means considering what we might not know as well as what we do already understand or think we understand. Our immune systems are incredibly complex and amazing but humans have advanced so technologically that scientists run the risk of believing that they can 'improve' human physiology. It's reasonable to think that because SAGE say 'this and that will work' we should go along with whatever they say (or order!). I'm sure SAGE are a bunch of very well meaning people and they are certainly very clever - but are they wise? At primary school I was taught the story of King Canute for a very good reason.
So, misslawbore, I will offer you moral support in whatever decision you take because I know that you have made the effort to think carefully about your options. There is no right or wrong here.