Brief Answer:
you need to get clinically examined and investigated thoroughly ..

Detailed Answer:
Hello XXXXXXX Welcome to HCM,
I've gone through your query and understand your concern,

You can apply local Diclofenac spray (Volini spray), avoid rubbing the area, and also take Tab PARACETAMOL 650mg Twice to thrice daily after food for next 3-4 days for symptomatic relief..

However, please note that these symptoms are not typically due to any temporary muscular spasm (these are typically denoting to spinal disks and segments compressing over the nerve and nerve roots), and for permanent relief, you need to get thoroughly investigated as well as clinically examined by preferably a Neurologist.. the fact that your a software developer, makes it even more important, as this involves prolonged desk-jobs and sitting in front of the computer..

Always try to sit with your spine erect, avoid recliners for sitting, and use a relatively harder surface chair..take short 5-10 min of breaks after every hour of sitting and simply walk around the premises for a while, this'll help..

Among the investigations, CBC, Electrolytes(Sodium, Potassium, Calcium, Magnesium), LFT, Serum Vit B12 & Vit D3 will be necessary, along with MRI-spine (based on the findings of the neurological examination, it should be determined whether only lumbo-sacral region scan or higher region scan also needed)..management will be entirely based on the findings..

Your too young and have a bright future ahead, please don't delay anymore and get these done for further management..

Let me know if there's any further queries..

Take Care
Kind Regards

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