Have you ever heard of sleep paralysis? While asleep, the body goes into a paralysis to prevent people from injuring themselves while sleeping. Sometimes, you wake but your muscles cannot move (that can be a very scary experience). This may be what you are experiencing, especially since you say you are semi awake. Search sleep paralysis on the web. It’s not all that uncommon.

mornings are the worst and it can take me a very long time to get out of bed

I've been getting it lately but usually midday.

I feel this but not in the morning, it is more later in the day. It is a weird feeling most definitely.

Yes