As Aruanan explained, what we have in Romans 5 is what we also have in Genesis 3:
16 To the woman also he said: I will multiply thy sorrows, and thy conceptions: in sorrow shalt thou bring forth children, and thou shalt be under thy husband's power, and he shall have dominion over thee. 17 And to Adam he said: Because thou hast hearkened to the voice of thy wife, and hast eaten of the tree, whereof I commanded thee that thou shouldst not eat, cursed is the earth in thy work; with labour and toil shalt thou eat thereof all the days of thy life. 18 Thorns and thistles shall it bring forth to thee; and thou shalt eat the herbs of the earth. 19 In the sweat of thy face shalt thou eat bread till thou return to the earth, out of which thou wast taken: for dust thou art, and into dust thou shalt return. 20 And Adam called the name of his wife Eve: because she was the mother of all the living. 21 And the Lord God made for Adam and his wife, garments of skins, and clothed them. 22 And he said: Behold Adam is become as one of us, knowing good and evil: now, therefore, lest perhaps he put forth his hand, and take also of the tree of life, and eat, and live for ever. 23 And the Lord God sent him out of the paradise of pleasure, to till the earth from which he was taken. 24 And he cast out Adam; and placed before the paradise of pleasure Cherubims, and a flaming sword, turning every way, to keep the way of the tree of life.
The consequence of original sin is toil, pain, death, and exile. The consequence of actual sin is condemnation to hell.
To be precise, everyone is currently condemned to hell who does not believe on the Lord Jesus. If, under your soteriology, someone is sitting on the fence trying to decide, they are condemned to hell because, by definition, they do not believe in our Lord Jesus. It's difficult to say "..sin is condemnation to hell" but not part of original sin because everyone is a sinner and that is because of original sin.
It's all part of the same curse. That original sin curse said we would die. The wages of sin is death. The two are interconnected.