Sorry if I am getting the wrong impression here, but if your ds is thriving on bm and very little food is there any way you can go with the flow and just keep offering finger type foods until he starts eating them? Making sure that you eat at the same time as your ds should help encourage him, but rest assured he will not starve himself - he is after all getting plenty of bm from you anyway! You are not the first person I read a message from with a baby who has very little solids at this age so it is not necessarily a problem. Are there any allergies in your family like asthma, eczema, hayfever or food allergies? It is common for babies who have allergies to instinctively avoid foods which may cause problems. Plus babies will only start feeding themselves solid foods when they are developmentally ready to do so - so it may cause more problems to force the issue. Breastmilk is where babies of his age will get the majority of their calories and nutrition from so as long as he is active & alert, hitting his development targets then you should not worry about that side of things. Your breastmilk is far superior to any solids he may eat, both in terms of calories and nutritional content.
This is from an article on the LLL website:
"Some doctors may feel that nursing will interfere with a child's appetite for other foods. Yet there has been no documentation that nursing children are more likely than weaned children to refuse supplementary foods. In fact, most researchers in Third World countries, where a malnourished toddler's appetite may be of critical importance, recommend continued nursing for even the severely malnourished (Briend et al, 1988; Rhode, 1988; Shattock and Stephens, 1975; Whitehead, 1985). Most suggest helping the malnourished older nursing child not by weaning but by supplementing the mother's diet to improve the nutritional quality of her milk (Ahn and MacLean. 1980; Jelliffe and Jelliffe, 1978) and by offering the child more varied and more palatable foods to improve his or her appetite (Rohde, 1988; Tangermann, 1988; Underwood, 1985)."
This book might interest you: "My Child Won’t Eat! How to prevent and solve the problem"
by Dr. Carlos González. I am reading it at the moment & it is very interesting & useful. You can get it through LLL. \link{http://www.lalecheleague.org/NB/NBSepOct05p206.html\Here} is an article with some excerts of it about why children don't eat.
If it is actually the bf (or frequency of bf?)that is the problem, rather than the lack of food then please remind yourself that you have managed to bf a baby with two other children to look after for 11 months so far - what have you done over the past year to occupy your other children whilst you breastfed? Obviously know how to cope very well with that - otherwise you would not still be bf'ing at 11 months 
Just a thought as well - If your ds has a problem with swallowing surely he wouldn't be able to swallow bm?
Sorry Im rambling tonight - its late & i'm full of cold so forgive me for this disjointed post. Please respond even if i've got the wrong end of the stick. Would love to help if I can.