Yep - I hear You and have been experiencing the same as You since the age of Seven.
While the Degree of acuteness is definately increasing - The 4D Sight is normal for Me but what is trippy for Me lately is the glimpses of the 5th I've been given...
Through My vision I'm seeing waves of pure Energy and Colors I can't describe - Sacred Symbols - Complex Math and with It - A feeling of Oneness with All that Is. These episodes are fleeting though, and the longest I've had it is for about 20 Minutes to a half an hour or so.
One of these Days soon - I will simply stay there...