Please note of you had any previous History of back injury or back pain. According to your complains there can be nerve involvement which requires a functional diagnosis.

Visit near by physiotherapy clinic and take direct treatment , instead of wasting time with online suggestion it won't gives u relief

If I were to see you, i do have a few follow up questions like when tidies the pain come and go, what makes it worse/better, how is the pain like first thing in the morning, does it gradually get worse or better as the day goes by? Do you also have instability/feeling of giving way in your legs/any lower back pain? How did all of this begin? Was there a defined root cause/mechanism of injury or trauma? All of these questions will give me a solid background of its root cause, to understand if the pain is originating from a muscle group/nerves/joint/poor blood supply,etc. From the slightest information I have, it could cue me into considering referring nerve symptoms from the lower back. I would highly recommend a detailed consultation offline>online (online works as well if offline isn’t possible) as soon as you can. The more you delay addressing it, the more time it’ll take for it to recover as your body adapts.

A few questions need to be answered that does pain radiate while walking??? If yes it might be a case of PIVD If no it might be a case of accumulation of metabolite..

For this you need to consult in person with the neurologist for proper assessment to get proper treatment.

Consult to Neurologist for this

Hi, seems there is some nerve tension at your spine which is traveling down your legs and giving you sharp pain till your feet. painkillers will help you mask up the pain and give a short term effect while not really working on the root cause. Plus considering your age there seems too much of muscle de conditioning and improper blood flow in legs. correct evaluation will help to target the weak muscles and nerves along with some more investigation.

You must visit your nearby physio centre ASAP

Please consult a neurologist in person