Hi there, I thought I could be of some help to you.
I've smoked weed chronically for the last three years (rarely going a day without smoking) and over the last year or so I've had episodes of recurrent sickness, which are usually triggered when I drink alcohol or exercise vigorously (I'm so unhealthy). If I drink, the next morning I'm sick and the sickness usually occurs every 40 mins and lasts for about a week (although it varies), lessening as time passes. When I'm ill the only thing that relieves my symptoms by halting the sickness and soothing the agonizing heartburn is a roasting hot bath - I usually run a new bath every hour or so until I feel better (which uses A LOT of water and people complain because they can't use the bathroom but I'm too ill to care).
I usually smoke more weed when I'm ill (which doesn't help) although sometimes it can help me to sleep as I usually don't until the sickness subsides. I was ill about a week ago and didn't sleep for five nights because I couldn't - I was in too much pain and was wide awake, making it all the harder to deal with with so much time on my hands. I've been to hospital on multiple occasions and have been put on a drip for dehydration because I'm unable to even sip water when I'm ill. I've been given anti-sickness injections as opposed to tablets - which I can't swallow without being sick. The intense nausea is present until I feel better. I am very selfish when I'm in this state, considering the bath to be my "property" and asking my boyfriend to drive around getting me all sorts of things to help me feel better - he does so much for me and I feel guilty. I'm not usually a selfish person but I have to be - I think it's my survival instinct kicking in. Throughout my sickness I often experience what I consider to be "periods of relief" whereby I feel better for a few hours and then the nausea and sickness return. This drives me insane.
A week ago I was given anti-acid tablets which I couldn't keep down. The pain was so bad and each time I'm sick I know I've got about another 6 days of this hell to go. I go into panic mode and honestly hope to have some sort of violent accident just so the pain will stop. I can't eat and when I was ill recently I went from seven and a half stone (which is about right a female of 5'0) to six stone and was pale and drawn and my skin was dry from all the hot baths. I experience these symptoms roughly every six months, sometimes more frequently and they are the worst times of my life. I suffer from anxiety usually and during these times I don't even have the energy to worry, instead my brain seems to focus only on my body. Painful memories seem trivial.
The recovery process is long and drawn-out mainly due to exhaustion and lethargy and I often miss long periods of time at college (meaning I have to catch up on large amounts of course-work) and also work (causing me anxiety about job-security). My doctor isn't aware of my cannabis use - I'm too ashamed to tell him that it's self-inflicted. It's certainly starting to seem like the only way this will stop is if I quit smoking which is inevitable anyway but in the mean time I've stopped drinking (not that I really drank much in the first place).
Also, I get weird cravings for things - and not necessarily food! I think of the juiciness and refreshment of a tropical island, for example and I also remembered going on holiday and the hotel had a cold pool which I craved the coolness of when I came out the hot bath. I don't know if this is just because I'm dehydrated or maybe it has something to do with the weed.
Hope I was of some help.