Dayvigo leg pain/weakness

Hi everyone
So ive been having insomnia for a year and half now, i was first on seroquel and zoloft, i stopped both gradually and was fine for 2 months, then i relapsed again, and was put on remeron and dayvigo 5.
My sleep got better, but when i wake up in the morning, my legs feel like a tree trunk of how stiff it is, and its so painfull to walk on it!! It needs couple of minutes to get better, but never fully better throughout the day! Whenever i walk i feel the pain in my sole and ankle it feels like its on fireeee. Also i feel its very weak sometimes and i feel like dragging it to move! When i travelled all these symptoms got worse i could barely walk and it got very swollen that i thought i had plantar fasciitis.
I was wondering is there any solution for that? I really feel like suffering..