Pretty unusual for DCS to carry on beyond 3 weeks. Firstly, its all about nitrogen gases in the bloodstream. Hence by now it should have cleared up. If it would have stayed so long, i don't think it is just merely numbness over the limbs. He would have had a major pulmonary embolism or even an ischaemia of the brain i.e. stroke.
It may as well just be a coincidental symptom and since he just recently had a 'scare' of DCS, one is prone to relate this as cause and effect.
Nevertheless it is definitely a good idea to have a proper check up. And preferable not the GP as Seadaemon has pointed out.
(just a thought)
nope it was definitely DCS...i too thought it was strange for it to surface after 3 weeks,
my cousin has a special condition(he has a hole in his heart) which led to cutaneous embolism(type 1 DCS aka skin bends,he had the whole rashes thing) due to quick tissue loading frm the hole(which probably accelerated frm the fast ascent)...since the gasses didnt come frm the arteries,off-gassing takes a different rate
once he hit the gym,the raised blood pressure encouraged bubble movement frm the venous side to the arterial side which led to the cerebral embolism(type 2 DCS i.e. stroke) its sumthing like pulmonary embolism(also type 2 DCS aka the chokes) but instead of effecting the circulatory system it went to the brain
im making a case study for him n cross-referenced his symptoms with some physiology books(a few related to diving) bcoz he wants to start diving again...n i want to help him so i needed to noe what happen to him the first time so i can prepare for him next time coz he'll b doing his refresher course under me(hopefully anywayz,we still need to convince his mom)
n dont bother asking who was his instructor to let him dive with his condition or the doctor who approved of his certificate of fitness to go diving coz i hav no idea but what i do noe is dat after the accident he went all the way to lumut to the hyperbaric treatment centre there and came back wit a bill saying his fit as anyone to go diving frm a certified physician n i wont stop any man to pursue his dream of diving,heck i encourage it
i just didnt want to bother wit the details b4 coz then i'd hav to give my oh so righteous speech(such as this,lol) coz i hate being known as a braggart
fyi...did u noe that the longest time ever recorded for DCS to occur is 36 hours(man,im could win the noble prize with this case study heheh)but he had a few symptoms b4 the stroke so im not sure it counts...the funny thing though is that he said he didnt felt any pain wen the symptoms occured thats why he disregarded it the first time,either he's lying or he has a high threshold towards pain i dunno