I agree with all that Stacia said. I only add/emphasize that you should expect to need LOTS OF REST for at least a few weeks; it is not abnormal to have a hard time sitting up or standing up at this point. Just minimize doing so. Crawl to the bathroom, consider using a bucket or pot near the bed to pee in (let someone else empty it), and save bathroom trips only for pooping for a few days. Eat eat eat and drink drink drink, and make your only work nursing the baby.
You will probably start to feel better in another day or 3, if you rest a lot now. This does NOT mean that you will be up for 'the usual life' by any means--but you should be able to sit and stand for short periods, gradually getting more strength with passing days.
I think PPD after a large blood loss is mainly caused by women's lack of understanding of what is going on. Remember, there is a difference between being tired/low energy as you rebuild your blood (a sort of physical 'depression'), and actually being anxious/depressed. This is anecdotal, based on women I've worked with who had excess blood loss, and those who came to me after a prior birth with hemorrhage and PPD. The women I've worked with after blood loss did fine, tho they did need some reassurance every so often about length of recovery time. The women who came to me for birth help subsequent to a high blood loss birth (of those who also reported PPD), seemed mainly to have been anxious/depressed because they just didn't get why they were so low energy, didn't give themselves any allowances or get extra help for a bit longer, things like that. Does this make sense? Basically, those who knew they were 'normal' for needing longer recovery time, did not get anxious--those who didn't have a clue tended to beat themselves up and/or worry a lot about 'what is WRONG with me?', leading into PPD. I'm oversimplifying somewhat....
Anyway--just take real good care of yourself and know that it is normal to take longer to recover from birth after a hemorrhage. Line up more help than you might have thought you'd need. I've seen women recover well, and in some cases more rapidly than I would have thought possible, from such bleeds....it's all in listening to your body, meeting those needs. Our bodies are quite capable--and eager!--to build more blood fast in such situations if we give the needed ingredients.