My skin itches so bad everywhere even where my penis area it be bumps and red spots on my stomach out of the blue it is something wrong with the insid?

More info needed. Rashes require a proper history and physical. If you can provide pictures or have a full exam by your doctor you are more likely to have a proper diagnosis. Good luck.
Here are some ... So many sudden itchy bumps on body surface suggests the occurrence of urticaria from some sorts of allergic reaction. If you're healthy and have no short of breath (SOB) or fever, oral benadryl (diphenhydramine) may be tried, but surely you need, with professional assistance, to figure out what the underlying cause may be so to prevent recurrence. But if you've SOB, seek urgent care right away.