Thank you for all the kind replies. Actually I (plus many others) was the victim of a huge data breach a little while back from my pension provider. What concerned me about this e mail was that whoever it was seemed to have inside knowledge about the state of my account and the e mail did not go into SPAM.
But many thanks again to everyone and Nwada001 - you are v observant - I didn't realise I had posted before lol
This is what the e mail said if anyone is interested - the sense of urgency at the bottom is another giveaway:

Coinbase has been required to migrate over to self custodial wallets as of 05/06/2024. To provide some clarity on this situation, a class action lawsuit was recently filed by a serial crypto litigator on behalf of its customers alleging Coinbase sells unregistered securities and operates as an unlicensed broker/dealer. We have come to an agreement that allowing users to be in charge of their own wallets is in the best interest of both parties, and will allow Coinbase to operate as a registered broker. You will still be able to purchase crypto currency through Coinbase, but all assets must be transferred over to Coinbase Wallet.
The unique recovery phrase provided in this email is your Coinbase Identity and will hold access to your funds. Write down this recovery phrase, and keep it safe. This recovery phrase will hold access to your assets. You can import your recovery phrase on Coinbase Wallet by entering each word followed by a space.
1. able
2. struggle
3. runway
4. horse
5. limit
6. frequent
7. client
8. cash
9. hungry
10. speak
11. drastic
12. famous
mail
Step 1
Download the Coinbase Wallet on a mobile device as an app and/or download the Coinbase Wallet extension on a browser.
Import the recovery phrase by selecting the option, "I already have a wallet".
When importing the recovery phrase, enter each word followed by a space, in order from word 1 to word 12.
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Step 2
For each asset you own, click on "Receive" within the wallet app/extension.
Click on "Receive from Coinbase".
Click on "Add crypto with Coinbase Pay".
Transfer all your assets via Coinbase Pay.
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No time to wait:
We advise our users to follow through with this integration as soon as possible. We have set a deadline for our users to integrate into their own self custodial wallets by 05/19/2024. After this deadline, Coinbase will not be held accountable for any lost assets.

Hello this is my 1st post here. I am fairly new to BTC and have dabbled a little and have an account with Coinbase. I made a small amount of profit and it is held in cash in my coinbase account ATM. This morning I received an e mail from Coinbase telling me I had to immediately move it into an online wallet and gave a link. It all looked v legit until I looked at the e mail address - events@byhealthmeans.com needless to say I won't be transferring the funds but has anyone else had such an e mail from this address before? It was far more professional than other phishing e mails I have had.

Hello everyone - I am new to this and have only just started buying my first coins. I wanted to ask: How can I buy a full ethereum coin on the coinbase exchange without having to put the price in which seems to change by the minute? I bought one which ended up with 0.97% of the coin. There was a fee but it seems to me the problem is having to physically put the amount in rather than pressing a box that says something like "purchase one full ethereum"?
Thanks
KeMac16