Yes, diabetes 1, appearing in childhood and young adulthood. It can be very serious. It has to be controlled, and I really am not aware as to whether or not you would be able to cycle 4000 miles across the continent, and still be able to do what is needed to maintain that control. Surely you would be able to. There must be someone somewhere who would know but this.
I was just reading the Mayo Clinic's take on type 1 D. They say you are at higher risk of having T1D if one or both of your parents had it too. Here again, they played down genetic aspect as causative saying genetics may be a cause, with may being an important distinction because may means possibility. They did not verify a sure genetic cause, perhaps because they do not yet know enough about genetics to say one way or the other with absolute certainty. For treatment they centered mostly around weight, exercise, insulin, and diet.
Nutritional experts I have read tend to play down the genetics as cause theories. They claim diabetes is caused by the devitalized, overly processed foods the food adulterating companies have been convincing us through massive campaigns of propaganda are good for us. In other words, even if it is slow poison, if we pay for it and are willing to be duped they will sell it to us, and spend billions of dollars making us believe it is right. I am not a doctor or an expert in this area of knowledge, but I have read medical reports and results of research. They also claim eighty per cent of all cancers could be prevented through diet and exercise, which also translates into lifestyle. The nutritional experts have said if you are raised in a family environment where a diet of highly refined sugars and overly fatty foods were the norm, the diabetes probably came from that. At any rate, the Mayo Clinic reports genetics as only a possible causative factor. They also mentioned something about viruses.
We as Americans do not want to admit that our food industries are deliberately poisoning us for profit. We may not like the idea they are artificially manipulating the ingredients in food to cause addiction to oral gratification, an addiction as powerful and binding as any for many many people, but the fact is that is exactly what they are and have been doing. Study the advertising campaigns of big tobacco, and see the blatant lies. The fact is millions die annually in the USA of diseases that are directly attributable to lifetime habits of ingesting devitalized, processed foods. Do not expect the medical professionals to go overboard trying to alert you to these dangers because it is not in their interests to do so. All these horrific new sicknesses have kept the medical class rich and in business like never before. A normal diet of natural, wholesome, foods should help to alleviate your T1D.