Foot pain after long periods of standing/walking, how long?

Hello everyone,

I've worked in the restaurant industry for the past 10 years and have always been in top shape. I averaged between 20,000 and 30,000 steps a day. On my days off, I often went hiking and exercised. My weight at that time was always between 55 and 60 kg.

Unfortunately, a year and a half ago I had a double herniated disc and several other setbacks and since then I have not worked and unfortunately also gained a lot of weight up to 92 kg at 1.56 cm.

I'm currently slowly losing the weight and after my rehab I want to go back to work as soon as possible.

However, I am very shocked because after 2 hours of standing or 2 hours of walking my feet hurt so unbelievably.

I'm not familiar with anything like that, as I've easily had 14-hour shifts before without sitting in between.

I have already been to the doctor and do not have any foot deformity.

Now my question: Does anyone of you know this?

If so, how long does it take for your feet to get used to standing/walking for long periods again?

Is this just because I've gained so much weight or do people of normal weight also have this problem?