Hello Berrinice,
Yes it is a concern. There are many causes so what we need to do is work out which of them is responsible and deal with that appropriately.
I recommend a visit to your local GP for some routine bloods and to look into it further.
You don’t have details in your signature so I can’t really comment further.
We do very occasionally see people who are F4 go from compensated cirrhosis to decompensated cirrhosis on treatment initiation. This is usually easy to manage and settles, but it is a possibility that needs to be considered. Bloods and physical examination help unravel the story.
PM me with your phone number and I will give you a call.