I keep getting hemroids from working out?

ok so I've started working out for about 1 -2 months now, and I've only just started to get bigger and seeing an improvement in my body. but the only thing stopping me is getting hemroids, when I do intense ab exercises I no I will get them straight away, so I stopped doing them, and now im even getting then just from doing chin-ups? has it got something to do with my posture f how im lifting myself up ? even when I do weights like lateral raises etc. im just sick of it im trying my best to start getting ripped and working out and this is really putting me off.