I moved here full time 5 years ago after having a holiday home here since 2004.  I am not  a pensioner, not for another 6 years, unless the government move the goal posts again.
At age 55 years my wife and I decided to retire early and move here full time.
We bought private medical cover which increased in cost annually until today when it stands at €1200.00 a year each. On top of that you buy your own medication and make additional co-payments to keep the overall cost down.  €12.00 to visit the G.P., €11.00 to have an injection, but, all other costs are covered. I needed heart tests which were done the same day, an abdominal scan which was done the following day. I have blood tests twice a year.  I have had two colonoscopies, under general thankfully. I was allowed to administer the pre op internal cleansing program at home myself.  The N.H.S. option would be to be as a day  patient and keep dashing from the ward to the loo
The other choice to keep costs down in the U.K. is that you get a packet in the post and you have to smear sticks with your bodily waste and post them back to be tested.
If you pay privately you get things done quicker and usually better.
The same is for the U.K., the N.H.S. is now at crisis point, not only because of increased immigration, but also because of the number of new managers needed to operate all the departments.  Sadly the days of Matron are long gone, when wards were spotless as opposed to today where corners are cut to save money. Cleaning contracts switch firms more often than Hollywood actors switch partners.
The U.K. made a rod for it's own back when kids were allowed to leave school and sign on for life claiming a raft of benefits.  When I explain to Catalan friends how easy it is not to work yet still maintain an income they are amazed.
All this cannot be blamed on the E.U.
We now split our time equally between our English home and our Spanish home.  In order to remain within the law we can only have residency in one country so we chose the U.K.  Yes it does cost more to run a car on English road tax and English insurance etc; but at the same time we can save on medical insurance and buy holiday insurance instead. As stated earlier we are not pensioners so the worry of the exchange rate does not affect our way of life directly at present.  Currency fluctuations are a way of life so it will be a case of time will tell where and when the £ will settle.  As soon as the markets calm down as soon as the political parties calm down things may be brighter.
Sadly the younger generation saying the older generation robbed them of their future is continuing, even though the older generation secured a future for the young.  Some people in England now think that all non-English people will leave the country and anyone working will get a pay rise, anyone on benefits will not be facing cuts and anyone who wants a doctors appointment will get one tomorrow.  A lot of people voted with limited knowledge of what the greater implications of Brexit would be, they did not want that knowledge as they were happy in their own world.
The facts remain a vote was taken and due to our democratic process we should accept the result.  Yes it was the closest of ballots and no doubt there are people in seats of power now working on how they can manipulate the process to move in their favour, time will out.....Rant over, off for siesta.