Hi Prana! Welcome aboard, so glad to have you with us!
I have used the 5x5 routine before with good success while bulking as well. Its also a nice change to typical training.
If you are trying to gain more muscle then you need to drop the cardio down to almost nothing.. I would sometimes do boxing or sprints 1x week while bulking, just to keep my sanity and endurance up some.
-wow! you are not eating NEAR enough even to maintain your weight. Im afraid that you may be risking putting your body into starvation mode. how long have you been eating this amount of calories?
id suggest slowly increasing them to maintenance level (which is approx bwX15) and then begin to slowly add a couple hundred calories on top of that for growth.
- you need more protein! at minimum 1g/lb bodyweight. 1.5g/lb being optimal imo. you also dont have enough carbs, 100g each day is dieting levels for some. slowly increase this as well. good sources are old fashioned oats, sweet potatoes/yams, brown rice, beans/legumes, fiberous fruit in moderation.
-I dont see any form of EFA's (essential fatty acids) in your diet. good choice include flaxseed oil, fish oil caps and/or fatty fish, olive oil, Udos oil, hempseed oil, natural peanut butter and nuts/seeds in moderation.
-are you including a post workout shake after training? consisting of whey protein and dextrose. ratios are 0.4g/kg bodyweight of protein(form of whey) and carbs 0.8g/kg bodyweight (in form of dextrose). ALA is also a great addition as well as creatine/glutamine if supplementing with those. drink this immediatly after training and then 1 hour later have a whole food meal of complex carbs and lean protein, no fats in that meal.
-your meal before bed should consisit of a casein or egg protein at best along with an EFA. cottage cheese and peanut butter is great! this allows for a slow release of amino acids in your blood as you sleep, to help keep catabolism at bay.
-I also cant emphasize the importance of LOTS of water. minimum of 1 gallon/day.
-with the 5 meals a day im assuming that your eating every 2.5-3 hrs, correct?
hope that helps a bit, any other questions/concerns feel free to ask! Great gang of ladies here willing to help!