UK access to moderna vaccine

Some of the online surveys conducted suggest that people with ME are lesss likely to get side effects from mRNA based vaccines like Moderna and Pfizer, than Astra-Zeneca, which is what the uk has been offering up until now. But it seems like Moderna is now being offered to younger people here (because of the platelet issue I believe?)

I'm in my fifties but have been extreme shielding and holding off my vaccination waiting to see which one is least risky for us - has anyone had experiences of getting access to Moderna in the UK in spite of being in an older age group ?

thanks to everyone on Phoenix Rising for being out there to have this converation with! what a lifeline ...