Ok. The symptoms you describe are suggestive of a carpal tunnel syndrome. This happens due to the compression of median nerve in the carpal tunnel, a small canal in front of your wrist.
This is usually idiopathic (which means it has no identifiable cause for it) but it could be secondary to a number of causes, the common ones being, diabetes, underactive thyroid, pregnancy related, or injury related such as previous fractures in the region.
The best way to diagnose a carpal tunnel syndrome apart from a clinical examination, is an EMG/NCV test. Electromyography (EMG) and nerve conduction velocity are special tests looking at how much the nerve is compressed and where is it compressed. If these tests do show a carpal tunnel syndrome, then the best option of treatment is a small surgery whereby the tight hand on top of carpal tunnel is released.
You will need to go to your GP and be referred to an Orthopaedic surgeon/Hand Surgeon who can then initiate these tests for you.
In the meantime, conservative measures can be tried. A wrist splint called a Futura splint can be worn on both wrists. These are available on Amazon or pharmacy. These will need to be worn for upto 6 weeks, especially at night time, but also during the day as much as possible.
Having said all this, occasionally there may be other conditions that can mimic these symptoms....conditions to do with small bones in your wrist. Again a discerning hand surgeon should be able to pick these up for you