Don’t forget that when you meditate you are trying to listen to your mind and body, so don’t be too hard on you if you are doing it different from someone else. You have to care for yourself.
However you can spend 60 secs
Sitting up with your face turned up spine comfortably erect and breath deeply (big inhale/big exhale) this way you get this prana(life force energy/ circulation) in a most beneficial posture for the body.
Kaizen in Japan is doing a new task (even a difficult one) for 60 seconds to train and adapt the body to learn or produce something new. It also has been said if you earnestly and honestly meditate for 60secs the benefit is far greater than ( vs ) forcing one's self to uncomfortably go longer I hope this helps, happy meditation!
But I understand you. Perhaps you could sit on a chair? Use as much support as you’d like, pillows, whatever makes you comfortable. And then move your limbs if you want to, when you meditate. You don’t have to sit completely still.
Alternatively, I would recommend you trying out yin yoga – it’s a very meditative form, with long (3-8 minutes stretches) lying down, which could be perfect for your circulation and meditation.
I have done yin yoga for a couple of years now, and it’s one my most enjoyable yoga forms.
You can find yin yoga practices online and do it at home.
But try to sit on a chair, or in the floor, and make itself comfortable for yourself, and move if you need to.
And be patient with yourself ❤️
If you really want to be sitting, maybe some big, soft cushions/pillows, or firm springy ones might help – you could even try sitting up or partially reclining in bed?
At the end of the day, whatever position allows you to focus on your breath without worrying about how comfortable you are is a good (and perfectly acceptable!) choice.
Hope that helps 🙂