Raise flesh coloured bumps on shaft

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I've had this condition for nearly 4 years but been too embarrassed to talk about it they are painless and slightly raised need help identifying what I have

What age are you now? I wonder whether you have had any level of circumcision, or had any part of your foreskin removed?
The general principle with something like this that has been in place for in-excess of a year, and looks like this is that they are a natural development.
Several things in this location can look like this, such as Fordyce Spots and simply sebaceous glands that can sometimes be as prominent as this …

I am 21 and yes I am circumcised

So yes, the development of these fits with the natural sexual maturation process.
What has most likely happened is that the normal development of these has been disrupted by the circumcision - they would look like normal Fordyce Spots or sebaceous glands if you had not been circumcised I would suggest.
If you require in-person medical confirmation you would need to see a Urologist