D58- Pakaratahi Headwaters to Wairongomai hut

I awoke in the night feeling terrible, severe chest pain and sick as a dog, im not sure what's caused it but im almost reaching for the PLB. Im a lot better in the morning, but still in no fit state to tackle the days challenges. Its only 7km today but it takes me more than that in hours. From the forks, i head up the unmarked spur, it starts off open bush but soon becomes thick head height scrub and very slow going. At the saddle, i swing E, aiming for Bawbaw, it soon becomes too steep and scrubby, so i siddle the southern face, just below the scrub untill i reach the second spur heading SW into the Wairongomai. The spurs not obvious to start with, and trying to stay on it is the main navigational challenge. I frequently take faulse spurs, requiring steep climbs back to the correct one. I should be tucked up in bed today, not doing this. A light drizzel adds to the scene. The last 500m becomes well defined and a good game trail leads down to the Wairongomai, dropping in just above the 3rd forks from the headwaters.
It starts off tight and scrubby, with one fall requiring a difficult climb around. Follows an easy section of bolders and shingle. After this it plunges into a series of canyons. A 3-4m fall requires a climb around but after that the sides become unsiddleable and everything must be tackled in the flow. There were on obvious escape routes if things went wrong or the river rose. A couple of deep sections required short swims, plus a couple of Shutes to slide down, travel upsteam would be almost impossible. Sevral logjams provided challenging downclimbs, while other provided invaluable log bridges.
For the final 500m it opens up into broad shingle. The hut sits above the river on the true right and is easy to miss. An arrow points to a short track leading to the hut, but is more visable heading upstream. Wairongomai hut is an older style nzfs hut, with 4 bunks, an open fire and water from the river. Looking through the book, the route i came down is known as Eager Beaver canyon, and is tackled by experienced canyoneers, with ropes and wetsuits, not crook trampers.
After lighting the fire i sit down only to wake up again just on dusk feeling terrible. Its rained again and my sleeping bag which was left outside for last nights condensation to dry is now soaked. A trip to the river for water takes everything I've got. I daren't eat anything in case it comes back out, and go to bed with a bowl and PLB, neither get used.