Stuck at home during the quarantine period is definitely a different kind of experience. Especially to those who are active all this while, the unforeseen measures had affected everyone in respective lifestyle shifts. At present, most of us are just filled with boredom and irritation (and more boredom and irritation).
This period has put us into a "sticky" situation where we are actually seated on the couch in front of the TV screen to catch up on the news, or seated on the chair in front of the computer screen while working from home or even, laying comfortably on the bed to read a book. In reality, as much as we try to make ourselves "productive", we are really not moving as much as we should or we can this period of time.
Hence, as we count through the days of the quarantine, many of us will start to feel stiff and immobile especially at the upper half of the body due to the long hours of "fixed routines" mentioned above.