I am basically a kind, considerate person I have not voiced this to him because it is unkind.
This narrative, this belief about yourself and about how relationships work, along with the fear of an uncomfortable atmosphere, is what you need to talk to a therapist about. You need to talk about the associated belief that you can't be truly yourself and must defer to your H's needs when he is there. Your beliefs are why you feel so stifled.
If you can't address the conditioning that has led you to state so firmly "I have not voiced this to him because it is unkind" and learn healthy communication skills, your marriage will never be one where your needs are met, and you won't be able to feel anything but stifled. This will be true regardless of where your H works.
Many of the elements of the intolerable situation are beliefs you yourself hold about what you can and can't do, beliefs about how your H would feel or respond, not immovable objects/ things that are objectively impossible.
TheFoundations Fri 09-Jul-21 10:56:05
Is the problem, as suggested in ^^ this post, that your whole relationship is affected by the belief that stating your needs is unkind? You say that your H probably believes you love having his company all day every day. You are talking about a belief that there is a complete disconnect between how he views the relationship and how you do.
...your inability to voice your needs and wants might in fact be central to your feeling stifled.
I agree with Ninkanink's comment there.
..........
The reason to talk to your GP as well as a therapist is possible depression. You are not getting unbroken sleep. You are living in strained circumstances. You are fixating on time alone. You are overwhelmed, and hopeless about the situation and the future. You are experiencing grief. Certain comments here have the effect of the proverbial red rag to a bull on you.