Pains in certain parts of both Arms Legs

Hi, I can feel pain in certain areas of my arms and legs. Like the outer elbow muscle, upper arm and triceps region. It's more like soreness when I press them. Also, my left thumb shivers and day before the right index finger was shivering and went heavy for a few seconds and went away. I have a sedentary lifestyle, and I work mostly on my laptop and mobile. No diabetes or BP or thyroid. Overweight and has a bit of high cholesterol. Even the upper/side calf and lower calf pains on most days and yesterday had pain on my right hamstrings. All these feel more like muscle pain. I have lost around 10 kgs and recently started seeing a lot of veins on my arms and legs. I am taking weekly VitD3 doses for last 10 weeks Please help, why is this happening.