Welcome to the forum. The aching pain that you are experiencing is due to muscle spasm or nerve compression. Body takes some time to adapt to changes in job. Don't worry, you should avoid contact with a railing to limit the internal injury
that causes you pain.
You can take nimusulide/paracetamol
combination medications after meals to get relief. You can also apply ointments
like "thrombophop" to help release any internal blood clots
. Pain relieving sprays and oitments can be helpful.
Pain should subside with rest if it does not subside, get clinically assessed. Take care